Using the frequency distribution below

MATHEMATICS · Single correct · A Level · Mathematics · Data presentation and interpretation · Data presentation and interpretation

Problem

Using the frequency distribution below, calculate the population standard deviation (correct to one decimal place). Class interval (marks): 0–10 | 10–20 | 20–30 Frequency: 3 | 2 | 5 (a)

9.2

(b)

8.0

(c)

8.7

(d)

8.2

Related theory

Variance and Standard Deviation
Measures of Spread
Statistics
Mean of grouped data

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