Answer
19.82 %
5.4%
Work Step by Step
Total: $22+68+15+5+0+0+0+1=111$ colleges.
The relative frequency for "775–799" is $\frac{22}{111}\approx0.1982$
The relative frequency for "800-824" is $\frac{68}{111}\approx0.6126$
The relative frequency for "825-849" is $\frac{15}{111}\approx0.1351$
The relative frequency for "850-874" is $\frac{5}{111}\approx0.0450$
The relative frequency for "875-899" is $\frac{0}{111}=0$
The relative frequency for "900-924" is $\frac{0}{111}=0$
The relative frequency for "925-949" is $\frac{0}{111}=0$
The relative frequency for "950-974" is $\frac{1}{111}\approx0.0090$
The percentage of California community colleges that have tuition below 800 dollars is the relative frequency of the first class (775-799): $0.1982=19.82$%
The percentage of California community colleges that have tuition of 850 dollars or more is the summation of the frequencies of the 4th, 5th, 6th, 7th and 8th classes: $0,045+0+0+0+0,009=0.054=5.4$%
