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evablogger [386]
1 year ago
10

5. The table below shows the number of survey subjects who have received and not received a speeding ticket in the last year, an

d the color of their car.Red CarNot Red CarTotalSpeeding Ticket162541No Speeding Ticket215279494Total231304535If one person is randomly selected from the group, what is the probability that this person does not drive a red car or did not get a speeding ticket?

Mathematics
1 answer:
Anettt [7]1 year ago
6 0

The total number of persons = 535

The number of persons that does not drive a red car is 304

The number of persons that didn't get a speeding ticket is 494

The number of persons that don't drive a red car and didn't get a speeding ticket is 279

Therefore, the probability that a person selected at random does not drive a red car and did not get a speeding ticket is

(number of persons not driving a red car + number of persons without speeding ticket - number of persons in both cases)/total number of persons

Thus, we have

(304 + 494 - 279)/535

= 0.97

The probability is 0.97

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