Several years​ ago, a study of college freshmen found that29.2​% of incoming freshmen characterized their political views as​liberal, 46.6​% as​ moderate, and 24.2​% as conservative. For this​year, a random sample of 500 incoming college freshmen yielded thefollowing frequency distribution for political views. Completeparts​ (a) and​ (b) below.
Liberal  145
Moderate  235
Conservative  120