Acompany did a quality check on all the packs of roasted almonds it manufactured. each pack of roasted almonds is targeted to weigh 21.25 oz. a pack must weigh within 0.24 oz of the target weight to be accepted. what is the range of rejected masses, x, for the manufactured roasted almonds?
x < 21.01 or x > 21.49 because |x - 0.24| + 21.25 > 0
x < 21.25 or x > 21.49 because |x - 21.25| > 0.24
x < 21.01 or x > 21.49 because |x - 21.25| > 0.24
x < 21.25 or x > 21.49 because |x - 0.24| + 21.25 > 0

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?