How many ways are there to select a committee of 17 politicians chosen from a room full of indistinguishable democrats, indistinguishable republicans, and indistinguishable independents.

(a)-if every party must have at least two members on the committee?
(b)-if, in addition, no group may have a majority of the committee members?

Answer this question! 30 points and brainliest! only if you know the answer.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?