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The probability distribution of a discrete random variable X is given below:

X : 2 3 4 5
P(X) : 5/k,7/k,9/k,11/k
The value of k is:

(a) 8

(b) 16

(c) 32

(d) 48

0 7 Views | Posted 3 months ago
Asked by Shiksha User

  • 1 Answer

  • A

    Answered by

    alok kumar singh | Contributor-Level 10

    3 months ago

    This is a Objective Type Questions as classified in NCERT Exemplar

    Sol:

    We  know  that  ∑i=1nP(Xi)=1∴                  5k+7k+9k+11k=1                                             32k=1        ⇒k=32.Hence,  the  correct  option  is  (c).

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