Which of the following are true ? (A) If the mean of a normal variate is 12 and standard deviation is 4, then the Z-score of data point 20 is 2. (B) Mean of the numbers obtained on throwing a die having '1' on three faces, '2' on two faces and '5' on one face is 3. (C) If the variance of a Poisson's distribution is 2, then P(X=0)=1/e^2. (D) For a binomial distribution, mean = 9 and the standard deviation is 3/2, then the number of trials is 12. Choose the correct answer from the options given below:

Question

Option 1: (A), (B) and (D) only

Option 2: (A), (B) and (C) only

Option 3: (B), (C) and (D) only

Option 4: (A), (C) and (D) only

AfterBoards · Accepted Answer

The answer is '(A), (C) and (D) only'. View full solution:

List-I	List-II
(A) An observed set of population selected for analysis	(I) Parameter
(B) A specific characteristic of the population	(II) Hypothesis
(C) A specific characteristic of the sample	(III) Statistic
(D) A statement made about a population parameter for testing	(IV) Sample

CUET Mathematics 2026 22nd May Shift 1 PYQs

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