Suppose that a box contains 6 cameras and that 3 of them are defective. A sample of 2 cameras is selected at random, with replacement. Define the random variable � as the number of defective cameras in the sample.Write the probability distribution for �. � P(�=�)             What is the expected value of �?

FInd the expected number of infected ducks in a sample of 5 ducks if the probability of an infected duck is .3 and the ducks are considered to be independent.

Suppose that a box contains 6 cameras and that 3 of them are defective. A sample of 2 cameras is selected at random, with replacement. Define the random variable � as the number of defective cameras in the sample.Write the probability distribution for �. � P(�=�)

Suppose that you randomly draw one card from a standard deck of 52 cards. After writing down which card was drawn, you place the card back in the deck, shuffle the deck, and draw another card. You repeat this process until you have drawn 20 cards in all. What is the probability of drawing at least 5 clubs? USE A CALCULATOR OR STATDISK TO ANSWER THIS QUESTION.   P(least 5 clubs)=  ENTER YOUR ANSWER TO 4 DECIMAL PLACES.

If the probability that a child is a boy is p, where 0 < p < 1, find the expected number of boys in a family with n children, given that there is at least one boy.