Compute the coefficient of variation and standard deviation

Reference no: EM13151378

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

Time Frequency
20 - 39 2
40 - 59 4
60 - 79 6
80 - 99 4
100 - 119 2

a. Compute the mean, the median, and the mode
b. Compute the variance.
c. Compute the standard deviation.
d. Compute the coefficient of variation.

Reference no: EM13151378

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