3. Use graph notes and know meanino RANGE and IQR. 9 points
The box plot summarizes the noon
temperatures in degrees Fahrenheit for
the month of April.
Temperatures at Noon in April
+ + +
40 44 48 52 56 60 64 68 72
Temperature (°F)
What are the range and the interquartile
range of the temperatures? (6.12C |
Lesson 15)
A Range: 26; interquartile range: 16
B Range: 70; interquartile range: 16
C Range: 16; interquartile range: 26
D Range: 26; interquartile range: 8

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?