Question

In: Statistics and Probability

The following datagive the prices of seven textbooks randomly selected from auniversity bookstore.$86...

The following data give the prices of seven textbooks randomly selected from a university bookstore.

$86

$174

$109

$119

$59

$155

$145

a.Find the mean for these data. Calculate the deviations of the data values from the mean. Is the sum of these deviations zero?

Mean =

Deviation from the mean for $174 =

Sum of these deviations =

b.Calculate the range, variance, and standard deviation. [Round your answers to 2 decimal places.]

Range =

Variance =

Standard deviation =

Expert Solution

a) sum of these deviations zero?

No

Mean =121

Deviation from the mean for $174 =|121-174 |=53

Sum of these deviations =222

b) range = 174-59= 115

orchestra answered 2 years ago

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The following datagive the prices of seven textbooks randomly selected from auniversity bookstore.$86...

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