Question

Refer to the following distribution of commissions:

Monthly commissions	Class Frequencies
$2100-$2300	7
2300-2500	10
2500-2700	12
2700-2900	12
2900-3100	23
3100-3300	29
3300-3500	32
3500-3700	39

  
What is the relative frequency for those salespersons that earn from $3100 up to $3300?

A .06

B .24

C .07

D .18

Answer 1

Monthly commissions	Class Frequencies
$2100-$2300	7
2300-2500	10
2500-2700	12
2700-2900	12
2900-3100	23
3100-3300	29
3300-3500	32
3500-3700	39

Relative frequency = frequency / total frequency

Therefore,

Frequency for 3100 - 3300 is 29

And

Total frequency is 164

So,

Relative frequency = (29/164) = 0.18

Answer : option "D" is correct.