Thirty Students at Eastside High School Took the SAT on the Same

Multiple Choice

Thirty students at Eastside High School took the SAT on the same Saturday.Their raw scores are given next. Consider a frequency distribution of the data that groups the data in classes of 1400 up to 1600,1600 up to 1800,1800 up to 2000,and so on.What is the approximate relative frequency of students who scored more than 1600 but less than 1800?

A) 0.17
B) 0.23
C) 0.40
D) 0.77