X is a discrete random variable with probability mass function p ( x ) = c x 2 for x = 1 2 , 1 , 3 2 , 2 . Find the value of c. Find the expected value of X

fro x = 12, 1, 32, 2 if the set of x is different just follow the same procedure for your particular set.

c = 1/1173

E[x] = 29.416

Step-by-step explanation:

The probability mass function is the probability that a discrete random variable X  takes a particular value of x for the probability mass function the sum of all the items in the mass function should be equal one, therefore, 1 = c(12^2 + 1^2 + 32^2 + 2^2) = 1, solving for c we get c = 1/1173, our probability mass function is p(x) = 1/1172*x^2 for x = 12, 1, 32, 2

The expected value is the probability-weighted average of all possible values, to calculate it we need to sum each item x by its respective probability:

E[X] = 12*(1/1173*12^2)+1*(1/1173*1^2)+32(1/1173*32^2)+2(1/1173*2^2) = 29.416

Please note that to calculate E[X] we need to calculate c first to have the probabilities of each x

the answer is thin because within context, the stanza concludes the and frail tone the people have toward each other, and the fact that it would be thin, makes the most sense compared to "pliable" or "not hard or firm to the touch". hope this , good luck.

step-by-step explanation:

can i have brainliest

1/6

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