The Ohio Bureau of Employment gathered the following sample information on the number of hours unemployed workers spent looking for work last week. Hours spent Searching Number of Unemployed   0 up to 10 3 10 up to 20  7 20 up to 30 15 30 up to 40 10 40 up to 50  5 TOTAL 40 Determine the variance and the standard deviation

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5. The Ohio Bureau of Employment gathered the following sample information on the number of hours unemployed workers spent looking for work last week.

Hours spent Searching

Number of Unemployed

  0 up to 10

3

10 up to 20

 7

20 up to 30

15

30 up to 40

10

40 up to 50

 5

TOTAL

40

Determine the variance and the standard deviation.

Hours spent
Searching
Number of
Unemployed
5. The Ohio Bureau of Employment gathered the following
O up to 10
sample information on the number of hours unemployed 10 up to 20
3
7
20 up to 30
30 up to 40
40 up to 50
ТOTAL
workers spent looking for work last week.
15
10
a. Determine the mean.
40
а.
b.Determine the variance and the standard deviation.
b.
Transcribed Image Text:Hours spent Searching Number of Unemployed 5. The Ohio Bureau of Employment gathered the following O up to 10 sample information on the number of hours unemployed 10 up to 20 3 7 20 up to 30 30 up to 40 40 up to 50 ТOTAL workers spent looking for work last week. 15 10 a. Determine the mean. 40 а. b.Determine the variance and the standard deviation. b.
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