5. In a study measuring households’ familiarity with downloading pictures from the Internet, the following results were obtained (1 = not at all familiar, 7 = very familiar).

Level of Familiarity Number of Households 1 22 2 26 3 34 4 40 5 32 6 28 7 18

a. Convert the number of household into percentages.

b. Calculate the cumulative percentages.

c. Construct a histogram with familiarity on the x-axis and frequency on the y-axis.

d. Calculate the mean, median, and mode of the distribution.