The following frequency distribution shows the number of books read by students in a…

MATHEMATICS · Single correct · CBSE · Mathematics · Statistics · Statistics

Problem

The following frequency distribution shows the number of books read by students in a month: Class interval (books): 0–10, 10–20, 20–30 Frequency (

f_i

): 4, 6, 5 Find the mean number of books read (correct to two decimal places). (a)

17.33

(b)

15.33

(c)

20.67

(d)

15.67