Question

Frequency table results for var1:

Count = 222

var1	Relative Frequency
A	0.23423423
B	0.34684685
C	0.21171171
D	0.1036036
F	0.099099099
Letter Grade	0.0045045045

2. Suppose a friend says to you that “Professor Jeff is such a tough grader.” All my friends say they failed his stats class because he is so difficult.” After see his grade chart how would you respond to him?

Answer 1

Relative frequency = cell frequency ÷ total frequency.

For grade A: 0.23423423 × 222 = cell frequency = 51.9 = 52 which means out of 222 he assigned A grade to 52 students.

Similarly

For grade B , cell frequency = 0.34684685 x 222 = 77

For grade C, cell frequency = 0.21171171 x 222= 47

For grade D, cell frequency = 0.1036036 x 222 = 23

For grade E, Cell frequency = 0.099099099 x 222 = 22

For grade F , cell frequency = 0.0045045045 x 222 = 1

Seeing professor jeff's grade chart, i can say that he is not a very tough grader, as he failed just 1 student out of 222. Scoring a grade A is difficult in his subject but he doesn't seem.to be failing the class or being way too difficult grader