Solve using R language The mean and SD of a certain group of 1000 high schoold grades,
Fantastic news! We've Found the answer you've been seeking!
Question:
Solve using R language
Transcribed Image Text:
The mean and SD of a certain group of 1000 high schoold grades, that are normally distributed are 78% and 11% respectively. (i) Find how many grades were above 90%? (ii) What was the highest grade of the lowest 10? (iii) What was the semi-interquartile range (Quartile deviation)? (iv) Within what limits did the middle 900 lie? The mean and SD of a certain group of 1000 high schoold grades, that are normally distributed are 78% and 11% respectively. (i) Find how many grades were above 90%? (ii) What was the highest grade of the lowest 10? (iii) What was the semi-interquartile range (Quartile deviation)? (iv) Within what limits did the middle 900 lie?
Expert Answer:
Posted Date:
Students also viewed these mathematics questions
-
The marks obtained by a number of students in a certain subject are assumed to be approximately normally distributed with mean 55 and a SD of 5. If 5 students are taken at random from this set, what...
-
Data Structures and Algorithm Analysis Assignment no: 1 Note: ZERO Marks for copy pasted assignments. Attach screenshot for your own user program execution(user input and output of your code) at the...
-
Using R language . Please review column slicing of data frames. Also review again variance and standard deviation. Extract as vectors "hp" asnd "wt" from mtcars in few different ways. Save these 2...
-
The instruction to convert 'A' to 'a' is: Select one: a. or al, 0000010b b. or al, 00100000b or al, 00100100b d. or al, 00010000b e. or al, 01100000b
-
Explain how a firm such as J. Crew can be doing well, but does not have an effective vision or mission statement.
-
On December 3, Ainge Printing purchased inventory listed at $7,400 from Craig Paper Supply. Terms of the purchase were 3/10, n/20. Ainge Printing also purchased inventory from Tippetts Ink Wholesale...
-
A partnership is formed by Terrence investing $150 000 and Marco investing $100 000. The partners are considering the following plans for dividing profits and losses. According to the ratio of their...
-
For each of the following items relating to the debt of Marfa City, indicate whether and how the debt would be reported on a balance sheet of one of the city's governmental funds. If it would not be...
-
A hiker and his dog have discovered a skeleton hidden deep in the woods. The medical examiner has identified this skeleton as female. What characteristics of the skeleton would help the examiner make...
-
What is the difference between computer organization and computer architecture?
-
Conditions and situations that you as a pilot can generally control and that arise from choices we make that could lead to physiological incapacitation, are often called ___________ stresses. social...
-
Your state has recently passed a medical marijuana law, which will allow specific patients to register and obtain marijuana legally. The state will require the marijuana to be grown in a...
-
In the board game of "Aggravation", the game begins with each player having their four game pieces in a "base" holding area and a player is unable to place one of her game pieces on the board for...
-
Butrazid (fct) is a controlled substance placed in schedule II by the federal government. One state has been having abuse and diversion problems with Butrazid, especially among teenagers. The drug...
-
In 2012, Hurricane Sandy caused massive destruction to the northeast United States. Tens of thousands of people lost their homes and possessions. Even those who werent directly affected by the...
-
Sallys Pharmacy did not have enough oxycodone in stock to complete a prescription, and partially filling it was not an option. The pharmacist at Sallys called Tims Pharmacy to ask if the pharmacy...
-
Choose a logo from a women's professional sports team and a men's professional sports team and complete the following analysis: A1) Paste in the logo for your chosen women's pro sports team and...
-
The percentage of completion and completed contract methods are described in the FASB ASC. Search the codification to find the paragraphs covering these topics, cite them, and copy the results.
-
What is the difference between a firm's gross profit margin, operating profit margin, and net profit margin?
-
Tsingtao Companys balance sheet shows a stockholders equity book value (total common equity) of \($800,500.\) The firms earnings per share were \($3.50,\) resulting in a price/earnings ratio of...
-
The balance sheet and income statement for the Papua New Guinea Coconut Company are as follows: Income Statement ($000) Balance Sheet (5000) Cash Accounts receivable Inventories $ 550 2,500 1.100...
Study smarter with the SolutionInn App