Let a pair of dice be thrown and the ...

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.

Text Solution

AI Generated Solution

Topper's Solved these Questions

MAXIMA AND MINIMA
RD SHARMA ENGLISH|Exercise All Questions|309 Videos
MEAN VALUE THEOREMS
RD SHARMA ENGLISH|Exercise All Questions|134 Videos

Similar Questions

Explore conceptually related problems

Let a pair of dice he rolled thrice and the random variable X be the number of doublets. Find the mean of the random variable.

A pair of fair dice is rolled at a time. The random variable X is the maximum of the two numbers shows on the dice. Find the probability distribution of X and mean of X.

If four dice are thrown together. Probability that the sum of the number appearing on them is 13, is

If X is the sum of the number when two dice are rolled , then mean variance are

Two dice are thrown. What is the probability that the sum of the numbers appearing on the two dice is 11, it 5 appears on the first?

Three dice are thrown together. The probability that the sum of the numbers appearing on them is 9, is

A pair of dice is thrown. Find the probability of getting the sum 8 or more, if 4 appears on the first die.

If three six-faced fair dice are thrown together, find the probability that the sum of the numbers appearing on the dice is 12.

RD SHARMA ENGLISH-MEAN AND VARIANCE OF A RANDOM VARIABLE -All Questions

From a lot of 10 bulbs, which includes 3 defectives, a sample of 2 bul...
Text Solution
|
The probability distribution of a random variable X is given below: X ...
Text Solution
|
Let a pair of dice be thrown and the random variable X be the sum o...
Text Solution
|
In a single throw of a dice; if X denotes the number on its upper face...
Text Solution
|
A dealer in refrigerators estimates from his past experience the proba...
Text Solution
|
A salesman wants to know the average number of units he sells per sale...
Text Solution
|
Evaluate the following definite integral: int(pi//3)^(pi//4)(t a n x+c...
Text Solution
|
The random variable X can take only the values 0, 1,2. Given that P(X=...
Text Solution
|
Two dice are thrown simultaneously. If X denotes the number of sixe...
Text Solution
|
Two numbers are selected at random(without replacement) from the first...
Text Solution
|
In a meeting, 70% of the members favour and 30% oppose a certain pr...
Text Solution
|
A class has 15 students whose ages are 14, 17, 15, 14, 21, 17, 19, ...
Text Solution
|
Find the probability distribution of the number of success in two toss...
Text Solution
|
Two cards are drawn successively with replacement from a well shuffled...
Text Solution
|
A fair coin is tossed until a head or five tails occur. If X denote...
Text Solution
|
In a game, a man wins a rupee for a six and loses a rupee for any o...
Text Solution
|
In a group of 30 scientists working on an experiments 20 never comm...
Text Solution
|
Find the mean and standard deviation of the following probability dist...
Text Solution
|
Find the mean and standard deviation of each of the following proba...
Text Solution
|
Find the mean and standard deviation of the following probability dist...
Text Solution
|