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18) The probability of heavy traffic on a provincial highway is 20%, while the probabilities of low and medium traffic are 50% and 30% respectively. It was estimated that annual maintenance costs of the highway are $20 000 in the case of low traffic, $30 000 in the case of medium traffic and $100 000 in the case of heavy traffic. Calculate the expected value of the annual maintenance costs.

18) The probability of heavy traffic on a provincial highway is 20%, while the probabilities of low and medium traffic are 50% and 30% respectively. It was estimated that annual maintenance costs of the highway are $20 000 in the case of low traffic, $30 000 in the case of medium traffic and $100 000 in the case of heavy traffic. Calculate the expected value of the annual maintenance costs.

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
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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18) The probability of heavy traffic on a provincial highway is 20%, while the probabilities of low and medium traffic are 50% and 30% respectively. It was estimated that annual maintenance costs of the highway are $20 000 in the case of low traffic, $30 000 in the case of medium traffic and $100 000 in the case of heavy traffic. Calculate the expected value of the annual maintenance costs.
Transcribed Image Text:18) The probability of heavy traffic on a provincial highway is 20%, while the probabilities of low and medium traffic are 50% and 30% respectively. It was estimated that annual maintenance costs of the highway are $20 000 in the case of low traffic, $30 000 in the case of medium traffic and $100 000 in the case of heavy traffic. Calculate the expected value of the annual maintenance costs.
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