Scores of 30 students in a 20-item summative test. Score Frequency Lower Boundaries (LB) Less Than Cumulative Frequency (< cf) 18 - 20 17.5 30 15 - 17 14.5 25 12 - 14 11.5 20 9- 11 7. 8.5 14 6-8 4 5.5 7 3-5 3 2.5 3 Which of the following values represents the 8th decile? (Round to the nearest tenths) A. 15.5 В. 16.9 C. 17.2 D. 17.9 А В
Scores of 30 students in a 20-item summative test. Score Frequency Lower Boundaries (LB) Less Than Cumulative Frequency (< cf) 18 - 20 17.5 30 15 - 17 14.5 25 12 - 14 11.5 20 9- 11 7. 8.5 14 6-8 4 5.5 7 3-5 3 2.5 3 Which of the following values represents the 8th decile? (Round to the nearest tenths) A. 15.5 В. 16.9 C. 17.2 D. 17.9 А В
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Scores of 30 students in a 20-item summative test.
Less Than
Cumulative Frequency
(< ef)
Score
Frequency
Lower Boundaries (LB)
18 - 20
17.5
30
15 - 17
14.5
25
12 - 14
6.
11.5
20
9 - 11
7
8.5
14
6-8
5.5
7
3-5
3
2.5
3
Which of the following values represents the Bth decile? (Round to the nearest tenths)
A 15.5
в. 16.9
с. 17.2
D. 17.9
A
В
O D
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