The five-number summary for two data sets is given: minimum q1 Median q3 maximum
1 5 24 37 45
1 9 16 25 50

Which of the following describes the distance between the two medians?
A
14 of the greater interquartile range
B
25% of the smaller interquartile range
C
2 of the smaller interquartile range
D
4 of the greater interquartile range

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?