Compare the data for the growth of two plant samples. how can you determine which data set is linear? a) sample b has linear data because it increases as a slower rate. b) sample a has linear data because it has a constant rate of change. c) neither sample has linear data because the samples start at different heights. d) both samples have linear data because as x increases, y increases.

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?