Find the slope of the line through each pair of points (12, -18), (11, 12)

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

What does the relationship between the mean and median reveal about the shape of the data

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?