Consider the following statements with respect to probability distributions : A. When mean (μ) = 1 and standard deviation (σ) = 0 for a data set, normal distribution is called standard normal distribution. B. In a normal distribution of data, z is given by $z=\frac{\mu-x}{\sigma}$ C. P('t' success) is the (r + 1) th term in the binomial expansion of (q + p) n . D. In a random experiment, a collection of trials is called Bernoulli, if trials are department by nature. E. When a random variable whose value is obtained by measuring and it takes many values between two values, it is called a continuous random variable. Choose the correct answer from the options given below :

Question

cdquestions Admin · Accepted Answer

The correct option is (A) :C and E only.

Answer

C and E only

Answer

A and B only

Answer

B and C only

Answer

C and D only

X	0	1	2	otherwise
P(X)	k	2k	3k	0

X	1	2	3	4	5	6	7
P(X)	k	2k	2k	3k	k²	2k²	7k² + k

List-I	List-II
(A) k	(I) 7/10
(B) P(X < 3)	(II) 53/100
(C) P(X ≥ 2)	(III) 1/10
(D) P(2 < X ≤ 7)	(IV) 3/10

X	0	1	2	otherwise
P(X)	k	2k	3k	0

The Correct Option is A

Solution and Explanation

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