Which of the sets shown includes the elements of set Z that are both odd numbers and multiples of 7? Z = {-21, -14. -7, 0, 7, 14, 21}
O
A. {-21, 21}
B. {-21.-7. 7.21}
C. {-14,0, 14)
O
D. {-21, -14. -7}
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Question 1
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Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

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?