Answer
See the picture.
Work Step by Step
Total: $173+978+249+249+134+153=1936$ adults.
The relative frequency for "None" is $\frac{173}{1936}\approx0.0894$
The relative frequency for "1-10" is $\frac{978}{1936}\approx0.5052$
The relative frequency for "11-20" is $\frac{249}{1936}\approx0.1286$
The relative frequency for "21-50" is $\frac{249}{1936}\approx0.1286$
The relative frequency for "51-100" is $\frac{134}{1936}\approx0.0692$
The relative frequency for "101+" is $\frac{153}{1936}\approx0.0790$
