Question 1

Eighty percent of the people who see a particular movie love it and plan to see it again soon.If we randomly select 18 people who are exiting the movie theater after seeing this movie, what is the probability that fewer than 12 loved the movie and will plan to see it again soon?

Accepted Answer

A)   0.0513
B)   0.9487
C)   0.1329
D)   0.8671E) A) and B)
F) A) and C)

Question 2

An experiment consists of tossing a balanced coin three times.Each individual coin toss results in either a heads (H)  or a tails (T) .We define a random variable (  )  as a count of heads from a given trial.How many experimental outcomes result in  ?

Accepted Answer

A)   2
B)   1
C)   3
D)   0E) B) and C)
F) A) and B)

Question 3

We define random variable X as a count of shoppers who use the "self-scan" aisle at the local supermarket during the day.X is a(n)  ________________ random variable.

Accepted Answer

A)   predictable
B)   unpredictable
C)   continuous
D)   discreteE) C) and D)
F) B) and C)

Exam 6: Random Variables and Discrete Probability Distributions

Eighty percent of the people who see a particular movie love it and plan to see it again soon.If we randomly select 18 people who are exiting the movie theater after seeing this movie, what is the probability that fewer than 12 loved the movie and will plan to see it again soon?

Correct Answer
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We define random variable X as a count of shoppers who use the "self-scan" aisle at the local supermarket during the day.X is a(n) ________________ random variable.

Correct Answer
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An experiment consists of tossing a balanced coin three times.Each individual coin toss results in either a heads (H) or a tails (T) .We define a random variable ( ) as a count of heads from a given trial.How many experimental outcomes result in ?

Correct Answer
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Exam 6: Random Variables and Discrete Probability Distributions

Eighty percent of the people who see a particular movie love it and plan to see it again soon.If we randomly select 18 people who are exiting the movie theater after seeing this movie, what is the probability that fewer than 12 loved the movie and will plan to see it again soon?

Correct AnswerverifiedShow Answer

We define random variable X as a count of shoppers who use the "self-scan" aisle at the local supermarket during the day.X is a(n) ________________ random variable.

Correct AnswerverifiedShow Answer

An experiment consists of tossing a balanced coin three times.Each individual coin toss results in either a heads (H) or a tails (T) .We define a random variable ( ) as a count of heads from a given trial.How many experimental outcomes result in ?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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