Mathematics

Statistics

Mean, median, mode of grouped data, cumulative frequency.

Sample Practice Questions

3 questions shown — tap “Show Answer” to check yours.

Easy

For a moderately skewed distribution, the empirical relation is:

AMode = 3 Median − 2 Mean

BMode = 2 Median − 3 Mean

CMean = 3 Median − 2 Mode

DMean = 2 Median − 3 Mode

Easy

The mean of first 10 natural numbers is:

A4.5

B5.0

C5.5

D6.0

Medium

The median class for class intervals 0–10, 10–20, 20–30, 30–40 with frequencies 5, 8, 12, 5 (total 30) is:

A0–10

B10–20

C20–30

D30–40

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