For each of the following datasets, explain whether you would expect the mean or the median of the observations to be higher:
a. In a rural farming community, for each household the number of children is measured.
b. For all households in a large city, yearly household income is measured.
c. For all students in a high school (not just those who were employed), income earned in a job outside the home in the past month is measured.
d. For the coins in someone's pocket that has one-third pennies, one-third nickels, and one-third quarters, the monetary value of each coin is recorded.