The following frequency distribution table shows the weights of 36 students in a certain Math 1 class of Miss Santos. Weights, lbs (x) Frequency,f 100 3 115 5 120 10 125 9 130 7 135 2 What is the variance? A. 165,649 B. 71.06 C. 144 D. 74.30

The following frequency distribution table shows the weights of 36 students in a certain Math 1 class of Miss Santos. Weights, lbs (x) Frequency,f 100 3 115 5 120 10 125 9 130 7 135 2 What is the variance? A. 165,649 B. 71.06 C. 144 D. 74.30

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Question

The following frequency distribution table shows the weights of 36 students in a certain Math 1 class of Miss Santos.

Weights, lbs (x)

Frequency,f

100

3

115

5

120

10

125

9

130

7

135

2

What is the variance?

A.

165,649

B.

71.06

C.

144

D.

74.30

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