rob made a play list and burned it to a cd there are 10 rock songs, 6 rap songs and 2 pop songs on the playlist. what is the ratio of all songs to songs that are not rock

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?

8.74 rounded to the nearest whole number

Keith runs 5 miles in 38 minutes. at the same rate, how many miles would he run in 57 minutes