1
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+2
-0
If variance of $$x_1, x_2 \ldots \ldots, x_n$$ is $$\sigma_x^2$$, then the variance of $$\lambda x_1, \lambda x_2, \ldots \ldots, \lambda x_{\mathrm{n}}(\lambda \neq 0)$$ is
2
MHT CET 2023 10th May Evening Shift
MCQ (Single Correct Answer)
+2
-0
Mean and variance of six observations are 8 and 16 respectively. If each observation is multiplied by 3, then new variance of the resulting observations is
3
MHT CET 2023 10th May Morning Shift
MCQ (Single Correct Answer)
+2
-0
The variance, for first six prime numbers greater than 5, is
4
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+2
-0
If the mean and S.D. of the data $$3,5,7, a, b$$ are 5 and 2 respectively, then $$a$$ and $$b$$ are the roots of the equation
Questions Asked from Statistics (MCQ (Single Correct Answer))
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