Data Handling II (Central Values) — Maths STD 7 — Question
Maharashtra BoardEnglish MediumSTD 7MathsData Handling II (Central Values)2 Marks
Question
Find the mean of first five multiples of 3
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Answer
The first five multiples of 3 are 3, 6, 9, 12 and 15.
Let $\bar{\text{x}}$ denote their arithmetic mean. Then,
$\bar{\text{x}}$ = (3 + 6 + 9 + 12 + 15) ÷ 5
= 45 ÷ 5
= 9
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