The side-by-side dotplot below displays the arm spans, in centimeters, for two classes. Arm Span (cm) Class A Class B 8 14 31 15 3 965 15 5 6 421 16 0 222 3 3 16 5 6 7 10 17 0 3 9965 17 320 18 0 1 2 6 6 18 9 0 19 2 19 20 2 995 Key: 15|5 = 155 cm Which statement is NOT true? O The mean arm span appears to be similar for the two classes. O The arm spans for Class A have less variability than the arm spans for Class B. O The arm spans for Class B have more variability than the arm spans for Class A. O The arm spans for Class A are roughly symmetric, while those for Class B are skewed left.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The side-by-side dotplot below displays the arm
spans, in centimeters, for two classes.
Arm Span (cm)
Class A
Class B
8 14
3 1
15 3
965 15 5 6
16 0 22 2 3 3
4 21
995 16 5 6 7
10 17|0 3
9965 17
0 1 2
9.
3 20
18
66
18
19| 2
19
20 2
Key: 15|5 = 155 cm
Which statement is NOT true?
O The mean arm span appears to be similar for the
two classes.
O The arm spans for Class A have less variability
than the arm spans for Class B.
O The arm spans for Class B have more variability
than the arm spans for Class A.
O The arm spans for Class A are roughly
symmetric, while those for Class B are skewed
left.
Transcribed Image Text:The side-by-side dotplot below displays the arm spans, in centimeters, for two classes. Arm Span (cm) Class A Class B 8 14 3 1 15 3 965 15 5 6 16 0 22 2 3 3 4 21 995 16 5 6 7 10 17|0 3 9965 17 0 1 2 9. 3 20 18 66 18 19| 2 19 20 2 Key: 15|5 = 155 cm Which statement is NOT true? O The mean arm span appears to be similar for the two classes. O The arm spans for Class A have less variability than the arm spans for Class B. O The arm spans for Class B have more variability than the arm spans for Class A. O The arm spans for Class A are roughly symmetric, while those for Class B are skewed left.
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