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Mathematics Questions and Answers March 06, 2023

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Sampson Racing Part A John Sampson was not sure, but his brother and partner, Fred Sampson was on the phone and needed a decision. Should they run the race or not? It had been a successful season so far, but the Pocono race was important because of the prize money and TV exposure it promised. This first year had been hard because the team was

nr' nut Assignment # 3 ' NO" Ruiz. MPA Name: ' Class: HSA 304 Page 149 V 5.1 End of Chapter'Problems ' ' Assume that the managers of the Fort Winston HOSpital are setting the price on 1 outpatient service. Here are the relevant data estimates: 8 MW Variable Cost Per. Visit L $5.00 Annual Direct fixed Cost SSO0,000 Annual overhead allocation

A steel company is producing steel for a new contract. The contract specifies the information in the following table for the steel. MATERIAL MINIMUM MAXIMUM Maganese 2.10% 3.10% Silicon 4.30% 6.30% Carbon 1.05% 2.05% The steel company mixes batches of eight different available materials to produce each ton of steel according to the specification.

A man has a simple discount note for $6200 at an ordinary bank discount rate of 8.61 % for 40 days. What is the effective interest rate? Round to the nearest tenth of a percent. (Use the banker's rule.)

Find the slope of the curve y using implicit differentiation from the equation y^2-2x-4y-1=0 at the point (-2, 1).

ASSIGNMENT- 4 STAT101 Student Full Name:..................................................... Student ID:............................................................... CRN No:.................................................................. Section-I State whether the following statements are True or False. (5 marks, 1 Mark each) 1- There may be

A study has results that seem fine, but there is no clear association to socialchange. What is missing?A correlation test was conducted to determine whether a relationship existsbetween level of income and job satisfaction. The sample consisted of 432employees equally represented across public, private, and non-profit sectors. Theresults of the

Prove that the set N X N is denumerable. Other questions are attached in the uploaded file

1) Last year the average daily change in the Dow Jones Industrial Index was 7.3 points. A random sample of 15 trading days this year showed the average change to be 5.2 points with standard deviation 10.2, Test the claim that the average change in the index is less this year than it was last year. Use a 5% significance level

A certain brand of candies have a mean weight of 0.8617g and a standard deviation of 0.0514.A sample of these candies came from a package containing 453candies, and the package label stated that the net weight is 386.6g.(If every package has 453candies, the mean weight of the candies must exceed 386.6/ 453=0.8534g for the net contents to weigh at

12. Assume the IQ scores of adults are normally distributed with a mean of 100 and a standard deviation of 15. Show all work. Just the answer, without supporting work, will receive no credit. (a) If a random sample of 25 adults is selected, what is the standard deviation of the sample mean? What is the probability that 25 randomly selected adults

Can you please check if my work is right? A large lecture theater has230seats,21of which can accomodate left-handed students. Suppose it is known that12% of people are left-handed. One class held in the theater has209students. (a) LetXbe the number of left-handed students in the class. What are the mean and standard deviation ofX? (b) Letbe

Compare the graph of the function with the graph of f(x) = 1. y= 2. y=- . -1 Identify the parent function and describe the transformation shown in the graph. Write an equation for the graphed function. 1. 2. Compare the graph of the function with the graph of f(x) = |x|. 1. y = 4|x| Use graphing technology to graph the three functions in the same

\f\f\f\f\f\f\f\f\f\fSequences, Mathematical Induction and Recursion 1 5.1 Sequences 2 Sequences Sequences represent ordered lists of elements. A sequence is defined as a function from a subset of N to a set S. We use the notation an to denote the image of the integer n. We call a n a term of the sequence. Example: subset of N: S: 1 2 3 4 5 ... 2 4

statistic help 1.Identify the given random variable as being discrete or continuous. The height of a randomly selected student Discrete or Continuous 2.In a clinical trial of a drug used to help subjects stop smoking, 758 subjects were treated with 1 mg doses of the drug. That group consisted of 43 subjects who experienced nausea. The probability

1. A secretary has three telephones on her desk, each with a different number, and none is an extension. During a 15-second interval the probability that phone 1 will ring is 0.35, that phone 2 will ring is 0.06, and that phone 3 will ring is 0.1. Find the probability that at least one phone will ring. ??? 2. A committee of four people is to be

X1, X2,.....Xn are a sequence of random variables. Show that Xn converges to b in quadratic mean if and only if the limit (n approaching infinity) of E(Xn) = b and the limit (n approaching infinity) of V(Xn) = 0.

Simple linear regression results: Dependent Variable: % obese Independent Variable: % less 1 vegetable/day % obese = -2.890451 + 0.4002508 % less 1 vegetable/day Sample size: 32 R (correlation coefficient) = 0.66457159 R-sq = 0.4416554 Estimate of error standard deviation: 2.0064392 Parameter estimates: Parameter Estimate Std. Err. Intercept Slope

Lesson 11 Instructions for Mac/Excel 2008 Excel 2008 does not include the Analysis ToolPak. However, this web site provides Microsoft's instructions for working around this by downloading a free statistical program (StatPlus:mac LE) that works with Excel. If Microsoft's instruction do not work for you, try downloading StatPlus from AnalystSoft.

QUESTION 1 A case-control study was conducted to evaluate the relationship between aspirin use and the risk of colon cancer. 2,000 cases and 2,000 controls were enrolled in the study. 1,800 of the cases reported using aspirin in the past while 1,200 of the controls reported using aspirin in the past. The value of the correct measure of association

Researchers at the University of Chicago wanted to use a one-sample t-test to determine whether women under the age of 25 watch more than 12 hours of television per week. They sent out a survey to a simple random sample of women under the age of 25 and received responses from 15 of them. The distribution of the number of hours per day that women

Find the probability that in 200 tosses of a fair six-sided die, a five will be obtained at least 40 times

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All-Time Movie Box Office Data The motion picture industry is an extremely competitive business. Dozens of movie studios produce hundreds of movies each year, many of which cost hundreds of millions of dollars to produce and distribute. Some of these movies will go on to earn hundreds of millions of dollars in box office revenues, while others

Finite Homework 1. An experiment consists of drawing 1 card from a standard 52-card deck. What is the probability of drawing a 3? (An integer or a simplified fraction) 2. A standard 52-card deck has four 13-card suits: diamonds, hearts, clubs, and spades. The diamonds and hearts are red, and the clubs and spades are black. Each 13-card suit

Suppose that local police are interested in determining whether the average speed of cars in a local intersection exceeds the local speed limit of 40 mph. They measure the speed (in mph) of 9 randomly selected cars passing through that intersection and collect the following data: 45, 41, 50, 45, 37, 47, 39, 40, 55 Showing all necessary and

Question 3. Heights of men on a baseball team have a bell-shaped distribution with a mean of 166 cm and a standard deviation of 7 cm. Using the empirical rule, what is the approximate percentage of the men between the following values? a. 145 cm and 187 cm b. 159 cm and 173 cm a._______ % of the men are between 145 cm and 187 cm? _ (Round to one

b. The M&M website used to publish the average proportion of each colour in a bag of M&Ms. This was published as 30% brown, 20% yellow, 20% red, 10% orange, 10% green and 10% blue. We will assume this distribution is correct for the purpose of this question. i. You purchase a bag of M&Ms and one M&M is selected at random. What is the probability

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The heights of the kindergarten children are approximately normally distributed with population mean 39 inches and population standard deviation 2inches. A classroom of 30 of these kindergarten children is used as a sample. What is the probability that the class mean x bar is greater than 40 inches.

The term critical value is often used to refer to the value of a test statistic that determines statistical significance at some fixed level for a test. For example, + 1.96 are the critical values for a two-tailed z-test at = 0.05. In performing a t-test based on 21 observations, what are the critical values for a one-tailed test when = 0.05? That

Internet Case - Drink-At-Home, Inc. Drink-At-Home, Inc. Drink-At-Home, Inc. (DAH, Inc.), develops, processes, and markets mixes to be used in nonalcoholic cocktails and mixed drinks for home consumption. Mrs. Lee, who is in charge of research and development at DAH, Inc., this morning notified Mr. Dick Jones, the president, that exciting

Microsoft Word - 2016s_ps1 Consider an individual with $10,000 in initial wealth that faces a potential loss of $3,600. (Wealth would then be $6,400 if the loss occurs and the individual does not buy insurance.) The probability of the loss is 25%. The individual has expected utility preferences with the utility function u=

https://blackboard.strayer.edu/bbcswebdav/institution/MAT/540/1156/Week4/mat540%20hw%20wk4.pdf The question i have is in the above link. kindly profer a solution

MATH 131 - Unit 2 Class Activity 2 8/16 Expected value is an important concept to consider when calculating premiums for insurance. The insurance company will assign probabilities to the possible outcomes for the group based on research data. The company will then use expected value to determine the premium to charge. Example 1: Dianne is a 25

Q3. a. State whether the following statement is true or false, and explain why you reach this conclusion: For a normally distributed random variable, P(97

ECON 476/576 Marketing Research Homework 1 In each of the following situations (1 and 2) make recommendations as to the specific type of probability or nonprobability sampling approach to be used and the method(s) of selecting the sample: 1. The manager of the appliance dept. of a local full-line department store chain is planning a major nonprice

"Conservationists have despaired over destruction of tropical rain forest by logging, clearing, and burning." These words begin a report on a statistical study of the effects of logging in Borneo. Researchers compared the number of trees growing on forest plots that had never been logged (Group A) with similar plots nearby that had been logged 1

= "at is: ment Statistics I MAT2058 804 3 Final Exam i i >. 'j at it 4 110f20(14complete) Overview, question ii of 20, 14 complete 5 Assume the readings on thermometers are normally distributed with a mean Jr Show t'Vork EaQtiesqu of CCC and a standard deviation of 1.0000. Find the probability that a randomly selected thermometer reads between -

the quiz is 120min for 11 question from matrices and determinants, linear and nonlinear system of equation and inequalities and Gaussian elimination

The distribution of blood types for 100 Americans is listed in the table. If one donor is selected at random, find the probability of selecting a person with blood type A+. Blood Type O+ O- A+ A- B+ B- AB+ AB- Number37 6 34 6 10 2 4 1

Week 4 quiz ashford Slideshow: The Power of a Power Rule Video Example 38: The Power of a Power RuleVideo Example 50: The Power of a Product RuleVideo Example 58: The Power of a Quotient RuleVideo Example 3: Negative Integral ExponentsVideo Example 46: The Rules for Integral ExponentsSlideshow: Evaluating a PolynomialSlideshow: Add

John Isaac Inc., a designer andinstallerof industrial signs, employs 60people. The company recorded the type of the most recent visit to a doctor by each employee. A national assessment conducted in 2014 found that 40% of all physician visits were to primary care physicians, 26% to medical specialists, 24% to surgical specialists and 10% to

2/7/2016 NS116 Unit 5a Quiz WebAssign NS116 Unit 5a Quiz (Quiz) Current Score : - / 21 Mandie AdlerMOL NS116 (6 Week), section XM1A, Winter 2016 Instructor: Linda Desjardines Due : Sunday, February 7 2016 11:59 PM CST 1. -/4.2 pointsAufColAlg8 6.1.005. Solve the systems of equations by using the substitution method. (If the system is dependent,

1. Find the following limits without using a graphing calculator or making tables. (a) x 3 3x 2 2 x x 2 x 2 lim (b) lim x 3 x 3 x 2 6 x 9 (c) lim 2 xh 2 6 x 2 h 3 h 0 h2 2. For each piecewise linear function, graph the function and find: lim x 4 f x f x lim x 4 x 2 (a) f x x 2 lim f x x 4 if x 4 if x 4 2 (b) f x 2x 4 if x 3 if x 3 3. For each

The practice of concluding "do not reject Ho" is preferred over "accept Ho" when we: a. have not controlled for the Type II error b. have an insufficient sample size c. are testing the validity of a claim d. are conducting a one-tailed test

many studies have investigated the question of whether people tend to think of an odd number when they are asked to think of a single digit number(o through 9). Combining results from several studies, kubovy and psotka (1976) used a sample size of 1770 people of whom 741 thought of an even number and 1029 thought of an odd number. Consider

Basic Well Logging HOMEWORK 1 Show all your calculations for computational questions and explain your reason(s) for conceptual questions. Name: ----------------------------------- Student ID: ----------------------------------- Question 1: Calculate the shale index (Ish) for the depths and intervals below for the log below (log A). Then, use

Can someone please assist with questions below: Discuss LP Models Select one (1) of the following topics for your primary discussion posting: The objective function always includes all of the decision variables, but that is not necessarily true of the constraints. Explain the difference between the objective function and the constraints. Then,

Assignment: FRM and ERM Mind Map You will create and turn in a mind map that illustrates the relationships and connections between and among key Financial Risk Management (FRM) and Enterprise Risk Management (ERM) concepts. A mind map is a way of outlining information that produces a diagram rather than a standard outline. It allows you to move

Astudyregarding the relationship between age and theamountof pressure sales personnel feel in relation to theirjobsrevealed the following sample information. At the 0.05 significance level, is there a relationship between job pressure and age?(Round your answers to 3 decimal places.) Degreeof Job Pressure Age (years) Low Medium High Less than 25

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The researcher wishes to estimate the average number of hours that high school students spend on facebook each day. A margin of error is .22 hours is desired. A standard deviation of 2.1 hours is reasonable. Estimate the minimum sample size needed to estimate the population mean with the desired accuracy?

The Rocky Mountain district sales manager of Rath Publishing Inc., a college textbook publishing company, claims that the sales representatives make an average of 43 sales calls per week on professors. Several reps say that this estimate is too low. To investigate, a random sample of 29 sales representatives reveals that the mean number of calls

ID 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Gender 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Major No Major No Major No Major No Major No Major No Major No Major No Major No Major No

1 HOMEWORK 4 STAT 305B Spring 2016 Due 3/10(R) Name_________________________________________ PROBLEM 1 (35pts) [See book Problem 5-55 on p.183] In an acid-base titration, a base or acid is gradually added to the other until they have completely neutralized each other. Let X and Y denote (the act of measuring) the milliliters of 120 5 2 XY . , acid

PSYC 354 HOMEWORK 8 Single-Sample T-Test When submitting this file, be sure the filename includes your full name, course and section. Example: HW8_JohnDoe_354B01 Be sure you have reviewed this module/week's lesson and presentations along with the practice data analysis before proceeding to the homework exercises. Complete all analyses in SPSS,

In this project, you will prepare a case study about The Effect of Project-Based Learning on Chemistry RESEARCH PROBLEM: Is there any significant effect of project-based learning on chemistry? INTRODUCTION: Describe the general area and context of the problem. Establish a need for the research by citing relevant theory and research. Lay the ground

This is Algebra, I prefer this to be answered very quickly, but accurate. I appreciate this a lot. Thanks In Advance. 1.Find the 25th term of the arithmetic sequence 7, 4, 1, 2, ... 2. In an arithmetic sequence, if a 4 =18 and a 10 = 30, determine a 1 , d, and a n . Then write the first four terms of the sequence. 3. In a geometric sequence, if a

CS 70 Discrete Mathematics and Probability Theory Fall 2015 Jean Walrand HW 13 1. Statistical hypothesis testing On one of the Mythbusters episodes1 , the Mythbusters decided to run an experiment to test whether toast tends to land buttered side down. At the beginning of the episode, Adam and Jamie built a rst attempt at a mechanical rig to drop

A farmer divided a field into 1-foot by 1-foot sections and tested soil samples from 32 randomly selected sections in the field. He finds that the mean pH level of the samples is 5.7 with a standard deviation of 0.26. A. mean = 5.7 SE = 0.26/ square (32) = 0.046 B. Construct a 95% confidence interval for the mean pH level of soil samples from

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The manufacturing company in Problem 2.34 also produces electric insulators. If the insulators break when in use, a short circuit is likely to occur. To test the strength of the insulators, destructive testing in high-powered labs is carried out to determine how much force is required to break the insulators. Force is measured by observing how

your statistics teacher knowing the power of sampling decides to use only 3 of your 5 quiz grades in assigning your grade for the course chosen at random. your sampling distribution is close enough to normal to use normal probability calculations what is the probability that your sampled quiz average will be less than 80? what is the probability

The mean absolute deviation (MAD) is used to: A. Estimate the trend line B. Eliminate forecast errors C. Measure forecast accuracy D. Seasonally adjust the forecast E. All of the above please assist, I only have an hour.

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Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is d = 0. Compute the value of the t test statistic. Round intermediate calculations to four decimal places as needed and final answers to three decimal places as needed. x 28 31 20 25 28 27 33 35 y 26 27 26 25 29 32 33 34

The average retirement age for a certain country was reported to be 58.4 years according to an international group dedicated to promoting trade and economic growth. With the pension system operating with a deficit, a bill was introduced by the government during the summer to raise the minimum retirement age from 60 to 62. Suppose a survey of 4 4

The operations manager of a large production plant would like to estimate the mean amount of time a worker takes to assemble a new electronic component. Assume that the standard deviation of this assembly time is 3.6 minutes. A. After observing 120 workers assembling similar devices, the manager noticed that their average time was 16.2 minutes.

The value Z c , is a value from the standard normal distribution such that P(-z c

Approximate the value of the integral by use of the trapezoidal rule,usingnequals = 8. 3 0 9 x 2 dx (Roundthe final answer to two decimal places as needed. Round all intermediate values to four decimal places as needed.)

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Find the domain of the following function. Show your work: f(x)=ln(3/x((x^2)-1))

H OMEWORK 3 Homework 3 is due by Friday October 21st at 5:00 pm. (1) Consider the Binomial model with parameters u = 1.3, d = 0.9, r = 0.1, S0 = 113, p = 0.7, q = 0.3 and N = 5. Let P be the probability measure determined be the risk neutral measure defined in class. by the numbers p, q and let P Compute the following expressions e 5 |F3 ) E(S5

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Suppose that in a group of insurance policies (which are independent as regards occurrence of claims), 20% of the policies have incurred claims during the last year. An auditor is examining the policies in the group one by one in random order until two policies with claims are found. (i) Determine the probability that exactly five policies have to

How statistics are utilized at your job (Retail)? Give as many details as possible.

Patient # Infectious Disease Age 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

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1.- (1 pt) Consider the rational function, , shown in the graph given above. a) Find b) What are the vertical asymptotes of ? Note: If there is more than one, list each separated by a comma: "x=a, x=b". Do not include spaces around the equals sign. Type, for example, "x=1", not "x = 1". Answer: c) If you were to continue the graph to the right,

I was able to see the answer for 1 and 4 but not 2 or 3. The link provided in the reply coursehero.com/qa/expert/view_question.php?question_id=8935143said it was answered but redirects to a landing pagehttps://www.coursehero.com/qa/expert/landing.php. How do we find your response to question 2 and 3?

IET 3403 : Industrial Experimentation NAME: ___________________________ Exam 2 Problem 1 Points Possible Points Earned 2 3 4 5 6 20 20 20 10 10 20 TOTA L 100% 1. Two manufacturing processes are being compared to try to reduce the number of defective products made. During 8 shifts for each process, the following results were observed: Line Line A B

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If slope of a straight line equation is -3 and coefficient of determination is 0.19, then correlation coefficient is

PLEASE SHOW WORK-I need to know how you got the answer Scheduling Employees: Suppose you own a catering company. You hire temporary employees to act as servers from the local college. Not being the most reliable employees, there is an 80% chance that any one server will actually show up for a scheduled event. For a wedding scheduled on a given

The specific statistical methods that can be used to summarize or to describe a collection of data is called: a) Descriptive statistics b) Inferential statistics c) Analytical statistics d) All of the above

1. The data set below contains spending on products ($) during a three-month period by a sample of 15 customers receiving incentives through a mobile loyalty program. Complete parts (a) through (d) below. 55.79 22.77 67.79 46.61 57.31 108.75 50.39 35.52 78.78 50.89 63.44 59.64 41.25 56.76 53.54 a. Compute the mean and median. The mean is nothing .

Hi! I have a question on this question: A producer of fine chocolates believes that the sales of two varieties of truffles differ significantly during the holiday season. The first variety is milk chocolate while the second is milk chocolate filled with mint. It is reasonable to assume that truffle sales are normally distributed with unknown but

Data is simply the numerical results of any scientific__________________. a) Analysis b) Researches c) Observation d) Measurement

suppose a random variable X has a pdf given by fx(x)={k(x^2(1-x)), 0

In November 2010, ING Direct was offering 2.4% interest on its Orange Savings Account, with interest reinvested quarterly.Find the associated exponential model for the value of a$2,000deposit after ( t) years. A (t) = Assuming this rate of return continued for6years,how much would a deposit of$2,000in November 2010 be worth in November2016?

Exhibit 10-2 Refer to the following hypothetical data collected using replicated measures design: Subject 1 2 3 4 5 6 7 8 9 10 Pre 50 49 37 16 80 42 40 58 31 21 Post 56 50 30 25 90 44 60 71 32 22 Refer to Exhibit 10-2. In a two-tailed test ofH 0 usinga= 0.05, what isp(obtained) for the results shown? 0.0108 0.0500 0.1094 0.0216 Please explain how

(4^16)^1/2 a^1/2 a^2 Incorporate the following five math vocabulary words into your discussion. Use bold font to emphasize the words in your writing. Do not write definitions for the words; use them appropriately in sentences describing the thought behind your math work. Principal root Product rule Quotient rule Reciprocal n th root Refer to

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An outbreak of the deadly Ebola virus in 2002 and 2003 killed 91 of the 95 gorillas in 7 home ranges in the Congo. To study the spread of the virus, measure " distance" by the number of home ranges separating a group of gorillas from the first group infected. Here are data on distance and number of days until deaths began in each later group:

The midpoint of the line segment from P 1 to P 2 is (-7,2). If P 1 = (-7,9), what is P 2 ?

Numerical Dierentiation Hector D. Ceniceros 1 Numerical Dierentiation Suppose f is a dierentiable function. We would like to approximate f (x0 ) given values of f at x0 and at neighboring points x1 , x2 , ..., xn . We could approximate f by its interpolating polynomial Pn (x) at those points and use f (x0 ) Pn (x0 ). There are several other

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This is a mixture of real estate, finance and statistics. Please DO NOT ANSWER unless you are positive you can complete the question accurately. You have gained access to a dataset that includes commercial real estate transaction that took place during the 2010-2012 time period in Miami, FL and in San Francisco, CA. After general data clean up you

Statistics are a group of tools that allow us to _____________. A. analyze data, B. make summaries, C. draw inferences, and D. generalize from the data.

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