Teachoo Quiz

Maths Statistics Class 11 MCQ and Assertion Questions

Short Quiz · Class 11 · Maths · CBSE

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Chapter 13 Class 11 Statistics | 5 questions | about 4 minutes

Practise Statistics Class 11 with Teachoo's Short Quiz (Class 11 · Maths · CBSE). Practise these questions in a free interactive quiz with answer feedback.

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Question 1 of 5
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Question 1 of 5
Calculate the mean deviation about mean for the data: $$\begin{array}{|c|c|c|c|c|c|} \hline x_i & 10 & 30 & 50 & 70 & 90 \\ \hline f_i & 4 & 24 & 28 & 16 & 8 \\ \hline \end{array}$$
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Question 2 of 5
Calculate the mean deviation about the median for the dataset: \(3, 9, 5, 3, 12, 10, 18, 4, 7, 19, 21\).
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Question 3 of 5
Group A (\(n_1 = 50, \bar{x}_1 = 60, \sigma_1^2 = 4\)) and Group B (\(n_2 = 50, \bar{x}_2 = 60, \sigma_2^2 = 9\)) are combined into a single dataset of \(100\) observations. Calculate the combined variance \(\sigma^2\).
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Question 4 of 5
Investment Fund P has average return \(\bar{x}_P = 12\%\) with \(\sigma_P = 2\%\). Fund Q has average return \(\bar{x}_Q = 15\%\) with \(\sigma_Q = 5\%\). Calculate the Coefficients of Variation \(C.V._P\) and \(C.V._Q\).
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Question 5 of 5
Calculate the variance of the first \(8\) even natural numbers (\(2, 4, 6, 8, 10, 12, 14, 16\)).
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