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4.1.4

A project conducted by the Australian Federal 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 table #4.1.4 ("Car preferences," 2013).

Table #4.1.4: Reason for Choosing a Car

Safety

Reliability

Cost

Performance

Comfort

Looks

84

62

46

34

47

27

             

 

Find the probability a person chooses a car for each of the given reasons.

Answer

Total reasons for choosing a car

= 84+62+46+34+47+27

=300

Probability of choosing safety

= 84/300

=0.28

Probability of choosing reliability

= 62/300

= 0.207

Probability of choosing cost

= 46/300

=0.153

Probability of choosing performance

= 34/300

= 0.113

Probability of choosing comfort

= 47/300

= 0.157

Probability of choosing looks

= 27/300

 

= 0.09

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