Question
Which of the following is not a subatomic
particle?Solution
Atom is the smallest part of the matter. It consists of three fundamental particles electron , proton and neutron. However, several subatomic particles have also been discovered by scientists. These are Positron, Neutrino, Pi-meson, Photon etc. Hence, option A is correct.
If moment generating function of discrete random variable X is (q + pet )n , then E(X2) equals to
Which of the following satisfies the time and factor reversal test?


Which of the following is NOT a way of the sampling?
The grouped data for the observation are as follows.
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If ten coins are tossed simultaneously, then the probability of getting at most I head is:
If a discrete random variable X follows uniform distribution and assumes only the values 8, 9, 11, 15, 18, 20, the value of P(|X-14| < 5) will be:
For the cumulative distribution function

the upper quartile point is
Which one is parameter from population?