Let x be a random variable such that the probability function of a distribution is given by {P}({X}=0)=\frac{1}{2}, {P}({X}= {j})={1}/{3^{{j}}} ({j}=1,2,3, \......, \infty), Then the mean of the distribution and {P}({X} is positive and even) respectively are: [25 Jul 2021 Shift 2]

JEE Main 25 July 2021 Shift 2 Solved Paper

Section: Mathematics

Question : 76 of 90

Marks: +1, -0

Let x be a random variable such that the probability function of a distribution is given by P(X=0)=

,P(X=j)=

(j=1,2,3,......,∞),
Then the mean of the distribution and P(X is positive and even) respectively are:

[25 Jul 2021 Shift 2]

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