The high temperatures for the first 5 days in December were as follows: 28 degrees, 3 degrres, -2 degrees, -4 degrres, and 12 degrres. What is the average high temperature of the 5 days? If the next da is 0 degrees, would the average of the six days increase or decrease?

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?