Question

(a) which of the following must be true about the morgan familys and the miller familys incomes?
o both the morgan family and the miller family earn more than the median income.
o both the morgan family and the miller family earn less than the median income.
o the miller family earns more than the morgan family.
o the morgan family earns more than the miller family.
(b) which of the following must be true about the morgan familys income?
o about 34% of the families in their county earn less than the morgan family.
o the morgan family earns about 34% of the highest income in their county.
o the morgan familys income is in the top half of incomes in their county.
o the morgan family earns $34,000.

Explanation:

• (a): Percentiles divide a data set into 100 equal - sized parts. If the Morgan family is at the 34th percentile and the Miller family is at the 91st percentile, the Miller family earns more than the Morgan family.
• (b): The 34th percentile means that 34% of the families earn less than the Morgan family.

Answer:

(a) The Miller family earns more than the Morgan family.
(b) About 34% of the families in their county earn less than the Morgan family.