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: 55% (18 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...
-
A company's management believes that substantial doubt exists that the company can meet its financial obligations as they come due for a one-year period of time from the issuance of its financial...
-
How does the power differential in a healthcare setting increase the stress and tension for workers?
-
The bank portion of the bank reconciliation for Williams Company at October 31, 2012, was as follows. The adjusted cash balance per bank agreed with the cash balance per books at October 31. The...
-
Complete the following vector addition and subtraction problem using vector components. Complete the table of the components of the vectors and the resultant vector components (4 marks). Calculate...
-
Dan Branson is a farmer in Abbotsford, British Columbia. A major part of Dan's farm is blueberries. Dan is entrepreneurial and ambitious. He is considering opening the processing of blueberries into...
-
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...
-
IQ scores based on the Wechsler Intelligence Scale for Children (WISC) are known to be normally distributed with = 100 and = 15. How many of the intervals do you expect to include the population...
-
Briefly explain the advantages of using color in the design of data-entry screens. What design guidelines apply to: a. The number of colors that should be used b. The spacing of colors on the visual...
-
Explain what is meant by a random number table. Describe how an auditor would select 35 random numbers from a population of 1,750 items by using a random number table.
-
The effective capacity of a system is only 60% of its design capacity and its actual output is 80 units a day. If the system's design capacity is 300 units a day, how effi- cient is the use of this...
-
Each of the following applies to concepts used in variables sampling. Choose the best response. a. An important statistic to consider when using a statistical sampling audit plan is the population...
-
List the four types of data codes-serial, block sequence, hierarchical, and association-in increasing order of: a. Mnemonic value b. Compactness c. Flexibility for expansion
-
Suppose for the previous Problem 3.21, that your CEO is highly risk averse and will not invest in any project with a payback longer than three years. Assuming a required rate of return of 15%, what...
-
If the amplifier indicated by the box input impedance of oo, which of the following statements are true ? has an open loop gain as well as Feedback factor (\beta = 1/ R_1\) The feedback is voltage...
-
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...
-
High Tech Manufacturing manufactures 2 5 6 GB SD cards ( memory cards for mobile phones, digital cameras, and other devices ) . Price and cost data for a relevant range extending to 2 0 0 , 0 0 0...
-
Alex was hired as the Chief Operating Officer (COO) of Zeta Corporation, a privately-owned company in the technology sector, effective January 1, 2022. Throughout the fiscal year 2023, Zeta...
-
Required information [ The following information applies to the questions displayed below. ] Carlberg Company has two manufacturing departments, Assembly and Painting. The Assembly department started...
Study smarter with the SolutionInn App