Verify that the sample variance is 1.25

Assignment Help Basic Statistics

Reference no: EM131398405

For a sample of n subjects, the relative frequencies are f₀/n = .2, f₁/n = .4, f₂/n = .2, f₃/n = .15, and f₄/n = .05. The sample mean is 1.45. Using your answer to given Exercise, verify that the sample variance is 1.25.

Exercise

Referring to the description of the population variance, σ², devise a method of estimating σ² based on the frequencies, f_x.

Reference no: EM131398405

Questions Cloud

Applicant for a position of a coal-shoveller : An applicant for a position of a coal-shoveller went through a number of selection tests: biodata, phone interview, work sample test, and cognitive ability test.

What is totco3 in the solution : A solution contains 10-4 M TOTOCl, 90% of which is present as HOCl. The solution also contains 7 x 10-4 MH2CO3. What is TOTCO3 in the solution?

Discuss the recent public policy decisions made in texas : Discuss the recent public policy decisions made in Texas with respect to abortion. Find at least one Op-Ed on the issue and explain and assess the author's arguments.

Who sets standardization guidelines : Who sets standardization guidelines? How will companies track network resources? Write a report summarizing your findings, and include a table of links to Web sites that provide additional details.

Verify that the sample variance is 1.25 : For a sample of n subjects, the relative frequencies are f0/n = .2, f1/n = .4, f2/n = .2, f3/n = .15, and f4/n = .05. The sample mean is 1.45. Using your answer to given Exercise, verify that the sample variance is 1.25.

Describe how your particular culture interacts with others : How would you describe how your particular culture interacts with others? In other words, do you exhibit self-credentialing or self-humbling characteristics etc...

Should organizational buyers behave like entrepreneurs : Should organizational buyers behave like entrepreneurs? Why or why not? Name some considerations for the Purchasing/Supply Management purpose/function when deciding on which source to select for supply contracts?

What is your assessment of the goals of the interest group : What is your assessment of the goals of this interest group? Are their goals in the best interests of Texas? Why? Are their other goals they should have or goals that they do have they should abandon?

Discuss the law or court ruling the civil rights act of 1964 : Discuss the law or court ruling The Civil Rights Act of 1964. Your initial discussion board post should cover these three parts: Begin by naming the law or court ruling (in bold, underlined text), and provide a one- to three-sentence summary ..

User Account

All Pages