Q. 45.0( 1 Vote )

A random variable A. 1/10

B. –1

C. – 1/10

D. 1/5

Answer :

The probability distribution of X is:



We Know that



Therefore,


2p+2p+3p+p2 +2p2 +7p2 +2p=1


10p2 +9p-1=0


10p2 +10p-p-1=0


10p(p+1)-1(p+1)=0


(10p-1)(p+1)


10p-1=0 or p+1=0



We considered because p is a probability and probability cannot be in negative


Option (B) is incorrect because p is a probability and probability cannot be in negative


Option (C) is incorrect because p is a probability and probability cannot be in negative


Option (D) is incorrect because by putting , the sum total of pxi is not equal to 1

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

An urn contains 3Mathematics - Board Papers

Two cards are draMathematics - Board Papers

There are three cMathematics - Board Papers

Three numbers areMathematics - Board Papers

Let <span lang="EMathematics - Board Papers

Which of the follRD Sharma - Volume 2

Which of the follRD Sharma - Volume 2

A random variableRD Sharma - Volume 2