MENU

RD Chapter 32 Mean and variance of a random variable Ex 32.1 Solutions

Question - 21 : -

Answer - 21 : -


Question - 22 : -

Answer - 22 : -


Question - 23 : -

Answer - 23 : -


Question - 24 : -

Answer - 24 : -


Question - 25 : -

Answer - 25 : -


Question - 26 : -

Answer - 26 : -


Question - 27 : -

Answer - 27 : -


Question - 28 : -

Fourballs are to be drawn without replacement from a box containing 8 red and 4white balls. If X denotes the number of red balls drawn, find the probabilitydistribution of X.

Answer - 28 : -


Question - 29 : -

Theprobability distribution of a random variable X is given below:

 

(i) Determinethe value of k

(ii)Determine P (X  2) and P b(X > 2)

(iii)Find P (X  2) + P(X > 2)

Answer - 29 : -


Free - Previous Years Question Papers
Any questions? Ask us!
×