Question

The table below shows the number of survey subjects who have received and not received a...

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

Red Car Not Red Car Total
Speeding Ticket 19 47 66
No Speeding Ticket 478 456 934
Total 497 503 1000
Math   Statistics-And-Probability   
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Answer #1

P( a randomly chosen person has a red car) = 497/1000 = 0.497

P( a randomly chosen person has a speeding ticket) = 66/1000 = 0.066

P( a randomly chosen person has a speeding ticket given they have a red car) = 19/497 = 0.038

P( a randomly chosen person Has a red car given they have a speeding ticket) = 19/66 = 0.288

P( a randomly chosen person Has a red car and got a speeding ticket) = 19/1000 = 0.019

P( a randomly chosen person Has a red car or got a speeding ticket.) = (497 + 66 - 19)/1000 = 544/1000 = 0.544

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