For the distribution below

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

Problem

For the distribution below, the arithmetic mean is

35

. Determine the missing frequency

k

. Class interval: 10–20 20–30 30–40 40–50 Frequency: 5 8 12 k (a)

20

(b)

18

(c)

12

(d)

15