2(x−2)^2−2 is the vertex form of the quadratic function f(x). Does this function have a minimum or maximum value and what is it? A-This function has a maximum value of 2.

B-This function has a minimum value of −2.

C-This function has a minimum value of 2.

D-This function has a maximum value of −2.

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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?