Q1 of 19 Page 1315

Find the mean (

(i) Given :



To find : mean (

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2

Find the mean and variance of the number of heads when two coins are tossed simultaneously.

 3

Find the mean and variance of the number of tails when three coins are tossed simultaneously.

 4

A die is tossed twice. ‘Getting an odd number on a toss’ is considered a success. Find the probability distribution of a number of successes. Also, find the mean and variance of the number of successes.

 5

A die is tossed twice. ‘Getting a number greater than 4’ is considered a success. Find the probability distribution of a number of successes. Also, find the mean and variance of the number of successes.