Home
Class 12
MATHS
Two dice are thrown simultaneously. If X...

Two dice are thrown simultaneously. If X denotes the number of sixes, find the expectation of X.

Text Solution

Verified by Experts

The correct Answer is:
`(1)/(3)`
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    NCERT GUJARATI|Exercise EXERCISE 3.5|15 Videos

  • PROBABILITY

    NCERT GUJARATI|Exercise MISCELLANEOUS EXERCISE ON CHAPTER 13|18 Videos

  • PROBABILITY

    NCERT GUJARATI|Exercise EXERCISE 3.3|14 Videos

  • MATRICES

    NCERT GUJARATI|Exercise Miscellaneous Exercise on Chapter 3|15 Videos

  • RELATIONS AND FUNCTIONS

    NCERT GUJARATI|Exercise MISCLELLANEOUS EXERCISE ON CHAPTER 1|19 Videos

Similar Questions

Explore conceptually related problems

A dice is thrown three times. Let X be 'the number of two seen'. Find the expectation of X.

When two balanced dice are thrown simultaneously , the probility of getting the total of numbers of dice as 9 is .........

Two dice are thrown simultaneously. What is the probability obtaining a total score less than 11?

A dice is tossed twice. Find variance if random variable X denotes the numbers of odd integers obtain on it.

A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability of two successes.

Let two fair six-faced dice A and B be thrown simultaneously. If E_1 is the event that die A shows up four, E_2 is the event that die B shows up two and E_3 is the event that the sum of numbers on both dice is odd, then which of the following statements is NOT true ? (1) E_1 and E_2 are independent. (2) E_2 and E_3 are independent. (3) E_1 and E_3 are independent. (4) E_1 , E_2 and E_3 are independent.

A fair die is tossed repeatedly until a six obtained. Let X denote the number of tosses required. The conditional probability that X ge 6 given X gt 3 equals

Let a pair of dice be thrown and the random variable X be the sum of the numbers that appear on the two dice. Find the mean or expectation of X.

Two dice are thrown. If it is known that the sum of numbers on the dice was less than 6, the probability of getting a sum 3, is .........

A pair of dice is tossed simultaneously. Find the probability that the sum of numbers on the dice Is a prime number.