Determine the population variance and standard deviation for the following data by using the original formula. Class
Question:
Determine the population variance and standard deviation for the following data by using the original formula.
Class f
20–under 30 ........ 7
30–under 40 ........11
40–under 50 ........18
50–under 60 ........13
60–under 70 ........ 6
70–under 80 ........ 4
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 52% (17 reviews)
Class f M fM 2030 7 25 175 3040 11 35 385 4050 18 45 810 5060 13 55 715 6070 ...View the full answer
Answered By
Nicole omwa
Being a highly skilled tutor with at least 5 years of tutoring experience in different areas, I learned how to help diverse learners in writing drafts of research papers, actual research papers and locate credible sources. My assurance is built upon my varied knowledge of a variety of subjects. Furthermore, my involvement and interaction with numerous learners of all levels has allowed me to understand my clients' specific demands. Ultimately, this has aided me in being a better coach to learners to better their grades. Essentially, my responsibilities as a tutor would include:
Teaching abilities that assist pupils in enhancing their academic performance
Personal interaction with learners to make them understand abstract concepts
Inducing new skills and knowledge into their academic journeys
Fostering individual reflection, and independent and critical thinking
Editing and proofreading
Because I am constantly available to respond to your queries, you may decide to rely on me whenever you require my assistance. As an assurance, my knowledge skills and expertise enable me to quickly assist learners with different academic challenges in areas with difficulty in understanding. Ultimately, I believe that I am a reliable tutor concerned about my learner's needs and interests to solve their urgent projects. My purpose is always to assist them in comprehending abstract schoolwork and mastering their subjects. I also understand that plagiarism is a severe offense and has serious ramifications. Owing to this, I always make it a point to educate learners on the numerous strategies to have uniquely unique solutions. I am familiar with the following formatting styles:
MLA
APA
Harvard
Chicago
IEEE
Communication is always the key in every interaction with my learners. Hence, I provide timely communication about the progress of assigned projects. As a result, I make sure that I maintain excellent communication with all of my clients. I can engage with all of my customers more effectively, assisting them with their unique academic demands. Furthermore, I attempt to establish a solid working relationship with my leaners I have exceptional abilities in the below areas;
Sociology
History
Nursing
Psychology
Literature
Health and Medicine
Chemistry
Biology
Management
Marketing
Business
Earth Science
Environmental Studies
Education
Being a teacher who aces in diverse fields, I provide various academic tasks, which include;
Academic Reports
Movie Reviews
Literature Reviews
Annotated bibliographies
Lab reports
Discussion posts
Dissertations
Case study analyses
Research proposals
Argumentative Essays
I guarantee you high-quality Papers!!!!!
5.00+
17+ Reviews
32+ Question Solved
Related Book For
Business Statistics for Contemporary Decision Making
ISBN: 978-0470910184
6th Edition
Authors: Ken Black
Question Posted:
Students also viewed these Statistics questions
-
Determine the sample variance and standard deviation for the following data by using the computational formula. Class ......... f 5under 9 ........20 9under 13 ........18 13under 17 ........ 8...
-
The mean and standard deviation for a random variable x are 5.0 and 2.0, respectively. Find the mean and standard deviation if a. each value of x is increased by 3 b. each value of x is multiplied...
-
Sample: 20, 13, 4, 8,10 Find the population variance and standard deviation or the sample variance and standard deviation as indicated.
-
M1 is a way to measure... a) the level of bank reserves b) a country's money supply c) the level of savings in a country d) a country's economic potential
-
Suppose Ax = x with x 0. Let a be a scalar different from the eigenvalues of A, and let B = (A -a1)-1. Sub-tract ax from both sides of the equation Ax = x, and use algebra to show that 1/ ( - a) is...
-
Think of some companies that you are familiar with or that youve read about where you think the human resource managers have been successful in adding value. What do the HR managers do to lead you to...
-
Which of the following graphs would be best for visually illustrating the data in the table: histogram; dotplot; scatterplot; Pareto chart; stemplot? Refer to the table in the margin, which...
-
Calculate the critical ratios for the following activities and indicate which activities are probably on target and which need to be investigated. Comment on eachactivity. ActualScbeduled Budgeted...
-
Design a D flip-flop that is asynchronously resettable with a reset input (R) and that also has an enable input (E). Modify a regular D flip-flop (including possibly lower-level views of the...
-
1. A beam of neutrons of constant velocity, mass M. (M. 1.67 x 10 * kg) and energy E, is incident on a linear chain of atomic nuclei, arranged in a regular fashion as shown in the figure...
-
Compute the mean, the median, and the mode for the following data. Class f 1.2under 1.6 ........220 1.6under 2.0 ........150 2.0under 2.4 ........ 90 2.4under 2.8 ........110 2.8under 3.2 ........280
-
Determine the sample variance and standard deviation for the following data by using the computational formula. Class f 5under 9 .........20 9under 13 .........18 13under 17 ........ 8 17under 21...
-
If the electric field vector E(z, t) of an EM wave in vacuum is, at a certain location and time, given by vector E = (10 V/m)(cos 0.5) i write an expression for the associated vector B-field.
-
Discuss how the development of accounting regulation in Japan has reflected the growth of interaction with international business and trade.
-
Discuss the approaches to corporate governance and audit assurance in China.
-
What are the main features of the corporate reporting system in China?
-
One July, the United States sold aircra worth $1 billion to China and bought aircra worth only $19,000 from China. During the same month, however, the United States bought $83 million worth of mens...
-
Explain how each of the following illustrates one of the four principles of interaction. a. At a college tutoring co-op, students can arrange to provide tutoring in subjects they are good in (like...
-
Suppose that the density function p(xl) is defined as follows for x = 1, 2, 3, ... and = 1, 2, 3, .... If is even, then Show that, for any x the data intuitively give equal support to the three...
-
Select a mass spectrometric technique with the highest mass resolution for identifying an unknown compound being eluted from a liquid chromatography column
-
An investment advisor believes that the rate of return for Horizon Companys stock is uniformly distributed between 3 % and 12 %. Find the probability that the return will be greater than 5 %. Find...
-
The following data represent the recorded weights (g) of a randomly selected sample of a particular car component. The manufacturing specifications require this car component to have an average...
-
Across the country, families of two adults and two children currently have an average weekly shopping bill at a large supermarket chain of $255. However, you believe the weekly bill for this type of...
-
In previous years, the average market price of warehouses in a particular city equated to $322.80 per m 2 of usable floor space. An investor wants to determine whether this figure has changed. A...
-
what is a commission merchant?
-
Company A has $17 million of outstanding equity and $6 million of bank debt. The bank debt costs 5% per year. The estimated equity beta is 2. If the market risk premium is 6.5% and the risk-free rate...
-
Part B. Gross Income Inclusions & Exclusions For each Q-6 through Q-19 below, determine whether the item described should be INCLUDED IN or EXCLUDED FROM the Gross Income of the taxpayer who receives...
Study smarter with the SolutionInn App