Statistics for Business and Economics
Statistics for Business and Economics
8th Edition
ISBN: 9780132745659
Author: Paul Newbold, William Carlson, Betty Thorne
Publisher: PEARSON
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Chapter 2.1, Problem 9E

A random sample of 156 grade point averages for students at one university is stored in the data file Grade Point Averages.

  1. a. Compute the first and third quartiles.
  2. b. Calculate the 30th percentile.
  3. c. Calculate the 80th percentile.
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