1 Answer
Solution :-
\( Mean , \overline{X} = \dfrac{\displaystyle\sum_{i=1}^{a} X_i}{n}\)
So, x̅ = \( \dfrac{ (6 + 7 + 10 + 12 + 13 + 4 + 8 + 12)}{8}\)
= \( \dfrac{72}{8}\)
= 9
Let us make the table of the given data and append other columns after calculations.
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We know that Variance,
\(σ^2= \dfrac{1}{N} \displaystyle\sum_{i=1}^{a} f_i (X_i-\overline {X} )^2\)
σ2= \( \dfrac{1}{8}\times 74\)
= 9.2
Mean = 9 and Variance = 9.25
Answered by Pragya Singh | 1 year agoRelated Questions
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