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Suppose that the probability that an adult in America will watch the Super Bowl is 38%. Each person is considered independent. We are interested in the number of adults in America we must survey until we find one who will watch the Super Bowl. Part (a) In words, define the Random Variable X. O the adult's opinion regarding the Super Bowl O the number of adults who watch the Super Bowl ◇ the favorite team of the adult ○ the number of adults surveyed until one who watches the Super Bowl is found Part (b) List the values that X may take on. OX= 0, 1, 2, ... OX 1, 2, 3, ..., 98, 99, 100 ○ X = 38 OX=1, 2, 3, ... □ Part (c) Give the distribution of X. -(0) Part (d) How many adults in America do you expect to survey until you find one who will watch the Super Bowl? (Round your answer to the nearest whole number.) adults □ Part (e) Find the probability that you must ask 6 people. (Round your answer to four decimal places.) Part (f) Find the probability that you must ask 5 or 6 people. (Round your answer to four decimal places.) Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 25 days and a standard deviation of 6 days. > Part (a) In words, define the random variable X. the length, in days, of a criminal trial O the length, in hours, of a criminal trial O the number of trials that last 25 days O the mean time of all trials Part (c) If one of the trials is randomly chosen, find the probability that it lasted more than 28 days. (Round your answer to four decimal places.) Part (b) Give the distribution of X. Х- ](0.0) Sketch the graph. о Л 0 10 20 30 40 50 0 10 20 30 40 50 10 10 20 20 Write the probability statement. 30 40 50 10 20 30 40 50 - Part (d) 70% of all trials of this type are completed within how many days? (Round your answer to two decimal places.) days

Suppose that the probability that an adult in America will watch the Super Bowl is 38%. Each person is considered independent. We are interested in the number of adults in America we must survey until we find one who will watch the Super Bowl. Part (a) In words, define the Random Variable X. O the adult's opinion regarding the Super Bowl O the number of adults who watch the Super Bowl ◇ the favorite team of the adult ○ the number of adults surveyed until one who watches the Super Bowl is found Part (b) List the values that X may take on. OX= 0, 1, 2, ... OX 1, 2, 3, ..., 98, 99, 100 ○ X = 38 OX=1, 2, 3, ... □ Part (c) Give the distribution of X. -(0) Part (d) How many adults in America do you expect to survey until you find one who will watch the Super Bowl? (Round your answer to the nearest whole number.) adults □ Part (e) Find the probability that you must ask 6 people. (Round your answer to four decimal places.) Part (f) Find the probability that you must ask 5 or 6 people. (Round your answer to four decimal places.) Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 25 days and a standard deviation of 6 days. > Part (a) In words, define the random variable X. the length, in days, of a criminal trial O the length, in hours, of a criminal trial O the number of trials that last 25 days O the mean time of all trials Part (c) If one of the trials is randomly chosen, find the probability that it lasted more than 28 days. (Round your answer to four decimal places.) Part (b) Give the distribution of X. Х- ](0.0) Sketch the graph. о Л 0 10 20 30 40 50 0 10 20 30 40 50 10 10 20 20 Write the probability statement. 30 40 50 10 20 30 40 50 - Part (d) 70% of all trials of this type are completed within how many days? (Round your answer to two decimal places.) days

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter6: Ratio, Proportion, And Probability
Section6.7: Probability And Odds
Problem 2C
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Suppose that the probability that an adult in America will watch the Super Bowl is 38%. Each person is considered independent. We are interested in the number of adults in America we must survey until we find one who will watch the Super Bowl. Part (a) In words, define the Random Variable X. O the adult's opinion regarding the Super Bowl O the number of adults who watch the Super Bowl ◇ the favorite team of the adult ○ the number of adults surveyed until one who watches the Super Bowl is found Part (b) List the values that X may take on. OX= 0, 1, 2, ... OX 1, 2, 3, ..., 98, 99, 100 ○ X = 38 OX=1, 2, 3, ... □ Part (c) Give the distribution of X. -(0) Part (d) How many adults in America do you expect to survey until you find one who will watch the Super Bowl? (Round your answer to the nearest whole number.) adults □ Part (e) Find the probability that you must ask 6 people. (Round your answer to four decimal places.) Part (f) Find the probability that you must ask 5 or 6 people. (Round your answer to four decimal places.)
Transcribed Image Text:Suppose that the probability that an adult in America will watch the Super Bowl is 38%. Each person is considered independent. We are interested in the number of adults in America we must survey until we find one who will watch the Super Bowl. Part (a) In words, define the Random Variable X. O the adult's opinion regarding the Super Bowl O the number of adults who watch the Super Bowl ◇ the favorite team of the adult ○ the number of adults surveyed until one who watches the Super Bowl is found Part (b) List the values that X may take on. OX= 0, 1, 2, ... OX 1, 2, 3, ..., 98, 99, 100 ○ X = 38 OX=1, 2, 3, ... □ Part (c) Give the distribution of X. -(0) Part (d) How many adults in America do you expect to survey until you find one who will watch the Super Bowl? (Round your answer to the nearest whole number.) adults □ Part (e) Find the probability that you must ask 6 people. (Round your answer to four decimal places.) Part (f) Find the probability that you must ask 5 or 6 people. (Round your answer to four decimal places.)
Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 25 days and a standard deviation of 6 days. > Part (a) In words, define the random variable X. the length, in days, of a criminal trial O the length, in hours, of a criminal trial O the number of trials that last 25 days O the mean time of all trials Part (c) If one of the trials is randomly chosen, find the probability that it lasted more than 28 days. (Round your answer to four decimal places.) Part (b) Give the distribution of X. Х- ](0.0) Sketch the graph. о Л 0 10 20 30 40 50 0 10 20 30 40 50 10 10 20 20 Write the probability statement. 30 40 50 10 20 30 40 50 - Part (d) 70% of all trials of this type are completed within how many days? (Round your answer to two decimal places.) days
Transcribed Image Text:Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 25 days and a standard deviation of 6 days. > Part (a) In words, define the random variable X. the length, in days, of a criminal trial O the length, in hours, of a criminal trial O the number of trials that last 25 days O the mean time of all trials Part (c) If one of the trials is randomly chosen, find the probability that it lasted more than 28 days. (Round your answer to four decimal places.) Part (b) Give the distribution of X. Х- ](0.0) Sketch the graph. о Л 0 10 20 30 40 50 0 10 20 30 40 50 10 10 20 20 Write the probability statement. 30 40 50 10 20 30 40 50 - Part (d) 70% of all trials of this type are completed within how many days? (Round your answer to two decimal places.) days
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