Probability & Statistics Workbook by Friedman Mel;

Author:Friedman , Mel; [Friedman, Mel]
Language: eng
Format: epub
ISBN: 4873582
Publisher: Research & Education Association
Published: 2012-09-26T00:00:00+00:00

QUIZ THREE

Suppose that group 1 has 15 data, group 2 has 20 data, group 3 has 22 data, and group 4 has 32 data. Assuming that there is no mode for any of these four groups of data, for which one(s) does exactly 25% of the data lie below Q1? All four groups

Only groups 1 and 2

Only groups 2, 3, and 4

Only groups 2 and 4

For questions 2 and 3, use the following grouped frequency distribution.

Class Limits Frequency

21–28 6

29–36 5

37–44 20

45–52 2

53–60 5

What is the value of Q1? 34.1

33.7

33.3

32.9

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