question archive The owner of a large company has asked you about the distribution of the ages of the 1000 employees specifically the mean age and the standard deviation of the ages
The owner of a large company has asked you about the distribution of the ages of the 1000 employees specifically the mean age and the standard deviation of the ages
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The owner of a large company has asked you about the distribution of the ages of the 1000 employees specifically the mean age and the standard deviation of the ages. To answer the owner's questions, you have taken a sample of 100 employees and have constructed the following distribution table
Age
No. of Employees
20 up to 30
17
30 up to 40
20
40 up to 50
25
50 up to 60
20
60 up to 70
18
What is the approximate standard deviation of the ages?
a.62.5
b.3902.2
c.62.2
d.3863.2
