The following is the frequency distribution for the speeds of a sample of automobiles traveling on...

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The following is the frequency distribution for the speeds of a sample of automobiles traveling on...

The following is the frequency distribution for the speeds of a sample of automobiles traveling on an interstate highway.

Speed (mph)	Frequency
50 - 54	2
55 - 59	4
60 - 64	5
65 - 69	10
70 - 74	9
75 - 79	5
	35

The standard deviation is

a.6.969

b.7.071

c.48.570

d.50.000

math Statistics-And-Probability

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