The standard deviation is closest to: A. 7.92kg  B. 8.63kg   C.8.04kg   D.9.21kg

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 28E
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The standard deviation is closest to:

A. 7.92kg  B. 8.63kg   C.8.04kg   D.9.21kg

Classes Frequency,
(Mass)
(kg)
30.00 <
40.00
40.00 <
50.00
50.00<
60.00
60.00 <
70.00
Σ
f
4
11
A
17
60
Cumulative Midpoint, fm
Frequency
4
B
43
60
m
35.00
45.00
55.00
с
140
495
1540
1105
fm²
4900
22275
84700
71825
Transcribed Image Text:Classes Frequency, (Mass) (kg) 30.00 < 40.00 40.00 < 50.00 50.00< 60.00 60.00 < 70.00 Σ f 4 11 A 17 60 Cumulative Midpoint, fm Frequency 4 B 43 60 m 35.00 45.00 55.00 с 140 495 1540 1105 fm² 4900 22275 84700 71825
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