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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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pharmdwannabe pharmdwannabe
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A year ago

The following frequency distribution shows the time (in minutes) that a sample of students uses the computer terminals per day.

 

Time

Frequency

20 - 39

2

40 - 59

4

60 - 79

6

80 - 99

4

100 - 119

2


 

a.Compute the mean.
b.Compute the variance.
c.Compute the standard deviation.
d.Compute the coefficient of variation.

Textbook 
Essentials of Statistics for Business and Economics

Essentials of Statistics for Business and Economics


Edition: 7th
Authors:
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birdnuggetbirdnugget
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A year ago
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pharmdwannabe Author
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A year ago
Just got PERFECT on my quiz
sweetalia
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Yesterday
You make an excellent tutor!
Transonic
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2 hours ago
This site is awesome
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