Suppose a hypothetical economy consists of 20 workers who have the following annual earnings: $18,000, $9,000, $82,000, $12,000, $13,000, $76,000, $61,000, $14,000, $22,000, $23,000, $21,000, $46,000, $59,000, $26,000, $27,000, $37,000, $6,000, $41,000, $3,000, and $24,000.

a. Using annual earnings ranges of $10,000 ($0-$10,000, $10,000-$20,000, and so on), construct a histogram of this economy's distribution of personal earnings.

b. What is the mode of the histogram?

c. What is the average (mean) level of earnings?

d. What is the median level of earnings?

e. Is the distribution normal, skewed leftward, or skewed rightward?