Question

A biased die is twice as likely to show an even number and an odd number. The die is rolled three times . It occurrence of an even number is considered served a success, then write the probability distribution of number of success. Also , find the mean number of success.

Answer 1

Answer:

If getting an even number 2 times more likely to happen than an even number.then if there should be 4 even numbers and 2 odd numbers.

The no. of success if its rolled 3 times is 64.

And the mean is 64/216.