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A consumer looking to buy a used red Miata car will call dealerships until she finds a dealership that carries the car. She estimates the probability that any independent dealership will have the car will be 28%. We are interested in the number of dealerships she must call. Part (a) In words, define the Random Variable X. ○ the cost of a used red Miata all car dealerships in one town O the number of used red Miatas that a dealership carries O the number of dealerships the consumer must call until she finds a used red Miata Part (b) List the values that X may take on. OX 1, 2, 3, ..., 27, 28 OX= 0, 1, 2, ... OX= 1, 2, 3, ... OX=1, 2, 3, ..., 98, 99, 100 Part (c) Give the distribution of X. ☑- ☐ □ Part (d) On average, how many dealerships would we expect her to have to call until she finds one that has the car? (Round your answer to the nearest whole number.) dealerships Part (e) Find the probability that she must call at most 8 dealerships. (Round your answer to four decimal places.) Part (f) Find the probability that she must call 4 or 5 dealerships. (Round your answer to four decimal places.) Submit Answer

A consumer looking to buy a used red Miata car will call dealerships until she finds a dealership that carries the car. She estimates the probability that any independent dealership will have the car will be 28%. We are interested in the number of dealerships she must call. Part (a) In words, define the Random Variable X. ○ the cost of a used red Miata all car dealerships in one town O the number of used red Miatas that a dealership carries O the number of dealerships the consumer must call until she finds a used red Miata Part (b) List the values that X may take on. OX 1, 2, 3, ..., 27, 28 OX= 0, 1, 2, ... OX= 1, 2, 3, ... OX=1, 2, 3, ..., 98, 99, 100 Part (c) Give the distribution of X. ☑- ☐ □ Part (d) On average, how many dealerships would we expect her to have to call until she finds one that has the car? (Round your answer to the nearest whole number.) dealerships Part (e) Find the probability that she must call at most 8 dealerships. (Round your answer to four decimal places.) Part (f) Find the probability that she must call 4 or 5 dealerships. (Round your answer to four decimal places.) Submit Answer

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
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 5E
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A consumer looking to buy a used red Miata car will call dealerships until she finds a dealership that carries the car. She estimates the probability that any independent dealership will have the car will be 28%. We are interested in the number of dealerships she must call. Part (a) In words, define the Random Variable X. ○ the cost of a used red Miata all car dealerships in one town O the number of used red Miatas that a dealership carries O the number of dealerships the consumer must call until she finds a used red Miata Part (b) List the values that X may take on. OX 1, 2, 3, ..., 27, 28 OX= 0, 1, 2, ... OX= 1, 2, 3, ... OX=1, 2, 3, ..., 98, 99, 100 Part (c) Give the distribution of X. ☑- ☐ □ Part (d) On average, how many dealerships would we expect her to have to call until she finds one that has the car? (Round your answer to the nearest whole number.) dealerships Part (e) Find the probability that she must call at most 8 dealerships. (Round your answer to four decimal places.) Part (f) Find the probability that she must call 4 or 5 dealerships. (Round your answer to four decimal places.) Submit Answer
Transcribed Image Text:A consumer looking to buy a used red Miata car will call dealerships until she finds a dealership that carries the car. She estimates the probability that any independent dealership will have the car will be 28%. We are interested in the number of dealerships she must call. Part (a) In words, define the Random Variable X. ○ the cost of a used red Miata all car dealerships in one town O the number of used red Miatas that a dealership carries O the number of dealerships the consumer must call until she finds a used red Miata Part (b) List the values that X may take on. OX 1, 2, 3, ..., 27, 28 OX= 0, 1, 2, ... OX= 1, 2, 3, ... OX=1, 2, 3, ..., 98, 99, 100 Part (c) Give the distribution of X. ☑- ☐ □ Part (d) On average, how many dealerships would we expect her to have to call until she finds one that has the car? (Round your answer to the nearest whole number.) dealerships Part (e) Find the probability that she must call at most 8 dealerships. (Round your answer to four decimal places.) Part (f) Find the probability that she must call 4 or 5 dealerships. (Round your answer to four decimal places.) Submit Answer
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