A radio disc jockey has 7 songs on this upcoming hour's playlist: 2 are rock songs, 3 are reggae songs, and 2 are country songs. The disc jockey randomly chooses the first song to play, and then she...

A radio disc jockey has 7 songs on this upcoming hour's playlist: 2 are rock songs, 3 are reggae songs, and 2 are country songs. The disc jockey randomly chooses the first song to play, and then she...

Determine the constant c so that f (x, y) satisfies the conditions of being a joint pmf for two discrete random variables X and Y: f (x, y) = c(1/4)^x * (1/3)^y, where x...

Mike owns 7 different mathematics books and 6 different computer science books and wish to fill 5 positions on a shelf. If the first 3 positions are to be occupied by math books and the last 2 by...

You biy a bag of skittles. In the first 80 skittles you eat 12 orange, 6 green, 40 yellow, and 22,red skittles. Based on the example, what is the probability that you will get a green skittle? Write...

The given table indicates the transactions for one teller for one day. Letting Upper E1 represent "cashing a check" and Upper E2 represent "making a deposit," express...

Must be in decimal form

The answers are either A.5/36 B.1/6 C.1/9 D.2/5

there are 7 red balls and 3 white balls in a bag. Andrew, Betsy, Cam, and Doug, in that order are going to randomly pick a ball from the bag and not replace it. first to draw a white ball wins. what...

stats 1st year question answers

There are 9 coins. 1,1,2,2,2,3,3,3,3. What is the probability of choosing three coins that add up to 6?

Replacement*

What is the probability that at least three of the nine justices of the U.S. Supreme Court have the same birthday? Round your answer to the nearest ten thousandth.

Need help figuring it out the answer is 23/66 but I dont know how i got there?!

continuation of question a black pair of socks? without looking how many socks would you need to pull out of the dryer to be sure you get a matching pair (of any color)?

This is a probability word problem. it is asking a combination/ permutation question

Two cards are drawn without replacement from an ordinary deck, find the probability that the second is not a kingnot a king, given that the first is not a kingnot a king. What is the conditional...

A spinner and a cube are used in a game. If the probability of a player spinning the color red and then rolling a 5 or 6 is 1/8, how many sections of the spinner should be labeled with the color red...

Suppose three balls are drawn (with replacement) from a bag that contains 4 red balls and 6 green balls. The number of green balls is counted. What is the expected number of greengreen balls...

If two fair dice are rolled, find the probability of the following result. A double, given that the sum was 11.

A raffle offers a first prize of $1000, 2 second prizes of $300, and 20 third prizes of $10 each. If 20000 tickets are sold at 75 cents each, find the expected winnings for a person buying 1 ticket...

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