PLS HELP! 50 POINTS

16. College Room and Board Costs Room and board
costs for selected schools are summarized in this
distribution. Find the approximate cost of room and
board corresponding to each of the following
percentiles.
Costs (in dollars)
3000.5-4000.5
4000.5-5000.5
5000.5-6000.5
6000.5-7000.5
7000.5-8000.5
8000.5-9000.5
9000.5-10,000.5
a. 30th percentile
b. 50th percentile
c. 75th percentile
d. 90th percentile
Source: World Almanac.
Frequency
5
6
18
24
19
8
5