Someone ! a store allows customers to fill their own bags of candy. troy decides he only wants chocolate-covered pretzels and gumdrops. chocolate-covered pretzels sell for $0.89 per pound, and gumdrops sell for $0.65 per pound. troy’s bag weighs 1.8 pounds and it cost $1.29. a. 0.5 pounds of pretzels; 1.3 pounds of gumdrops b. 0.9 pounds of pretzels; 0.9 pounds of gumdrops c. 1.3 pounds of pretzels; 0.5 pounds of gumdrops d. 0.8 pounds of pretzels; 1 pound of gumdrops

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?

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average

Find the solution on the interval [0, 2pi)