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NCERT Exemplar Solutions Class 7 Mathematics Solutions for Data Handling - Exercise in Chapter 3 - Data Handling
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A die was thrown 15 times and the outcomes recorded were
5, 3, 4, 1, 2, 6, 4, 2, 2, 3, 1, 5, 6, 1, 2.
What is the mean?
Answer:
Given data is 5, 3, 4,1,2, 6, 4, 2, 2, 3,1,5, 6,1,2
Arranging the data in ascending order, we have
1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6.
\Rightarrow \text { Mean }=\frac{1+1+1+2+2+2+3+3+ 4+4+5+5+6+6}{15} \\ =\frac{47}{15}=3.13
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