Find the mean, median, and mode for each data set.
a. Time for pizza delivery (min): {28, 31, 26, 35, 26}
b. Yearly rainfall (cm): {11.5, 17.4, 20.3, 18.5, 17.4, 19.0}
c. Cost of a small popcorn at movie theaters ($):{2.75, 3.00, 2.50, 1.50, 1.75, 2.00, 2.25, 3.25}
d. Number of pets per household: {3, 2, 1, 0, 3, 4, 1}