Mathematics, 24.09.2020 16:01 biancaalegriashaffer
PLEASE HELP You survey the students in your class to find out what kinds of movies they like to watch. The students were given the following choices: Comedy (C), Horror (H), Drama (D), Action (A), Romance (R). The following were the results of your survey: C, C, R, R, D, R, H, H, C, A, A, R, A, A, A, R, R, H, H, H, C, H, A, R, D, D, D, D, H, R
b. What is the relative frequency of the people that chose comedies? Show
your calculation.
c. What is the relative frequency of the people that chose horror? Show
your calculation.
D. What is the relative frequency of the people that chose drama? Show
your calculation.
E. What is the relative frequency of the people that chose action? Show
your calculation.
F.. What is the relative frequency of the people that chose romance? Show
your calculation.
G. g. Use the relative frequencies calculated in parts (b) – (f) to explain which
genre of movies is the most popular with your class. Explain your reasoning.
H. If you were having a party for your class which movie genre would you be
least likely to pick? Explain your reasoning.
Answers: 3
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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?
Answers: 1
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