Home
Class 12
MATHS
Two cards are drawn with replacement fro...

Two cards are drawn with replacement from a well shufflied deck of 52 cards . Find the mean and variance for the number of aces .

Text Solution

Verified by Experts

The correct Answer is:
`"Mean"=(2)/(13)`, `"Var(X)"=(24)/(169)`
Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER 03

    FULL MARKS|Exercise PART III|10 Videos
  • SAMPLE PAPER -15 ( UNSOLVED)

    FULL MARKS|Exercise PART -IV|7 Videos
  • SAMPLE PAPER- 10 (UNSOLVED)

    FULL MARKS|Exercise (PART-IV) IV. Answer all the questions.|7 Videos

Similar Questions

Explore conceptually related problems

Two cards are drawn without replacement from a wellshuffled deck of 52 cards. Let X be the number of face cards drawn, then the sum of mean and variance of X will be.

Two cards are drawn successively with replacement from a well-shuffled deck of 52 cards. Let X denote the random variable of number of aces obtained in the two drawn cards. Then P(X = 1) + P(X = 2) equals

Two cards are drawn successively with replacement from a pack of 52 cards. Find the probability distribution of the number of aces.

Two cards are drawn simultaneously from a well shuffled pack of 52 cards. Find the mean, variance and standard deviation of the number of kings.

Two cards are drawn successively with replacement for a well shuffled pack of 52 cards. Find the probabilility distribution of the number of kings.

Five cards are drawn successively with replacement from a well-shuffled deck of 52 cards . What is the probability that i. all the five cards are spades? ii only 3 cards are spades? iii. none is a spade?

Five cards are drawn successively with replacement from a well shuffled pack of 52 cards. What is the probability that only 3 cards are spades?