View the step-by-step solution to:


This question was created from stat hw2.docx


1 (8 pts) For the following set of sample data:
x={2,4,1,1,3,fl,5} a. calculate the mean, median, and mode
Mean = 2.3 Median = 2 Mode = 1
b. calculate the standard deviation using the deviation scores method c. Calculate the standard deviation using the raw scores method and confirm
the same answer as for part b. d. Calculate the variance. 2 (12 pts) For the following data it: {5, 2, T, 9, 4}
a. Find SS (use whichever method you want):
b. Find s (assuming this is sample data):
c. Find c (assuming this is population data): d. Assuming this is population data, calculate SEEN. What is the name we give
to this statistic? 3 (5 points) The deviation-method formula calculating the standard deviation
(and variance} includes the mean. Explain why it makes sense for this measure
of the valiability of a sample to be calculated using the mean. (Hint: what is it that that Instant-lard rInuini-inn museum-1:91

Recently Asked Questions

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Let our 24/7 Statistics and Probability tutors help you get unstuck! Ask your first question.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors