Which statement is NOT true? The side-by-side dotplot below displays the arm
spans, in centimeters, for two classes.
Arm Span (cm)
Class A
Class B
8 14
31 153
9 6 5 15 5 6
4 2 1 160222 33
995 16 5 6 7
10 17 | 03
9 9 6 5 17
320 18012
66 18 9
0 19 2
19
20 2
Key: 15/5 = 155 cm
The mean arm span appears to be similar for the
two classes
The arm spans for Class A have less variability than
the arm spans for Class B
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 Bare skewed left.