Fifteen students took a statistics pre-test and post-test. The results are below (a score of 28 is considered a perfect score). Round your answers to the nearest tenth, if necessary. Student Pre-Test Post-Test 123 3 4 5 6 7 8 9 10 11 12 13 14 15 9 11 9 4 10 11 9 9 7 8 5 15 12 0 9 22 28 18 24 25 16 19 20 18 14 16 26 21 14 13 (a) Find the mean pre-test score. (b) Find the median pre-test score. (c) Find the mean post-test score.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 13PPS
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1.
Fifteen students took a statistics pre-test and post-test. The results are below (a score of 28 is considered a
perfect score). Round your answers to the nearest tenth, if necessary.
Student Pre-Test Post-Test
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
9
11
9
4
10
11
9
9
7
8
5
15
12
0
9
22
28
18
24
25
16.
19
20
18
14
16
26
21
14
13
(a) Find the mean pre-test score.
(b) Find the median pre-test score.
(c) Find the mean post-test score.
Select an answer
(d) Find the median post-test score.
(e) Are the post-test scores skewed right, skewed left, or approximately symmetric?
Transcribed Image Text:Fifteen students took a statistics pre-test and post-test. The results are below (a score of 28 is considered a perfect score). Round your answers to the nearest tenth, if necessary. Student Pre-Test Post-Test 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 9 11 9 4 10 11 9 9 7 8 5 15 12 0 9 22 28 18 24 25 16. 19 20 18 14 16 26 21 14 13 (a) Find the mean pre-test score. (b) Find the median pre-test score. (c) Find the mean post-test score. Select an answer (d) Find the median post-test score. (e) Are the post-test scores skewed right, skewed left, or approximately symmetric?
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