A project conducted by the Metropolis Municipal Office of Road Safety asked peop

Question

A project conducted by the Metropolis Municipal Office of Road Safety asked people many questions about their cars. One question was the reason that a person chooses a given car, and that data is in following table:

Table: Reason for Choosing a Car

Safety 84 Reliability 62 Cost 46 Performance 34 Comfort 47 Looks 27

A. Find the probability that a single randomly-selected respondent chooses a car for safety:

B. Find the probability that a single randomly-selected respondent chooses a car for cost:

C. Find the probability that a single randomly-selected respondent chooses a car for comfort:

D. Find the probability that a single randomly-selected respondent chooses a car for reliability:

Explanation / Answer

(A) Probability = No. of people choosing a car for safety/Total no. of people = 84/(84 + 62 + 46 + 34 + 47 + 27) = 0.28.
(B) Probability = No. of people choosing a car for cost/Total no. of people = 46/(84 + 62 + 46 + 34 + 47 + 27) = 0.1533.
(C) Probability = No. of people choosing a car for comfort/Total no. of people = 47/(84 + 62 + 46 + 34 + 47 + 27) = 0.1567.
(D) Probability = No. of people choosing a car for reliability/Total no. of people = 62/(84 + 62 + 46 + 34 + 47 + 27) = 0.2067.

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