Mathematics, 18.02.2020 18:09 Knownothing
The following data give the prices of seven textbooks randomly selected from a university bookstore.
A. $91
B. $176
C. $108
D. $115
E. $56
F. $157
G. $144
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 $176 = $ Sum of these deviations = $
b. Calculate the range, variance, and standard deviation. [Round your answers to 2 decimal places.] Range = $ Variance =
Answers: 2
are data points, 
is the mean and n is the number of observations. 
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The following data give the prices of seven textbooks randomly selected from a university bookstore....
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