Posted by **Derek** on Monday, November 24, 2008 at 5:39pm.

a set of 10 cards consists of 5 red cards and 5 black cards. the cards are shuffled thoroughly and i choose one at random, observe its color, and replace it in the set. the cards are thouruoghly reshuffled and i again choose a card at random, observe its color and replace it in the set. this is done a total of four times. let x be the number of red cards observed in these four trials. the mean of x is?

## Answer this Question

## Related Questions

- statistics - The red face cards and the black cards numbered 2-9 are put into a ...
- Math - Need help on how to solve this problem.. Five cards are chosen from a ...
- math - if A 52 card deck of playing cards is shuffled, and one card is dealt ...
- statistics - you are dealt two cards successively(without Placement)from a ...
- Math - Five red cards numbered 1,2,3,4,5 and two black cards both numbered 5 are...
- Maths - Five red cards numbered 1,2,3,4,5 and two black cards both numbered 5 ...
- AP Statistics - A standard deck of cards consisting of 52 cards, 13 in each of 4...
- Trig - If you are dealt 3 cards from a shuffled deck of 52 cards, find the ...
- statistics - Suppose you wanted to test your ESP using an ordinary deck of 52 ...
- math - if you are dealt 5 cards from a shuffled deck of 52 cards find the ...