Question 71373: The following was gathered on the driving records of 100 drivers over the past year. The results are summarized in the table below Kilometers driven per year (100 drivers)
Less than 20,000 20000 to 50000 more than 50000 total
inclusive
accident during
past year 5 10 15 30
no accident during 15 20 35 70
past year
Total 20 30 50 100
If an individual is selected at random from the group above, determine the probability that the person
a) was in an accident during the past year.
b) drove less than 20,000 km or more than 50,000 km.
c) was in an accident during the past year and drove more than 50,000 km.
d) did not have an accident, given they had driven between 20,000 km and 50,000 km last year.
e) drove more than 50,000 km, given that they did not have an accident.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! The following was gathered on the driving records of 100 drivers over the past year. The results are summarized in the table below Kilometers driven per year (100 drivers)
Less than 20,000 20000 to 50000 more than 50000 total
inclusive
accident during
past year 5 10 15 30
no accident during 15 20 35 70
past year
Total 20 30 50 100
If an individual is selected at random from the group above, determine the probability that the person
a) was in an accident during the past year.Ans: 30/100
b) drove less than 20,000 km or more than 50,000 km. Ans: (20+50)/100=70/100
c) was in an accident during the past year and drove more than 50,000 km.
Ans: 15/100
d) did not have an accident, given they had driven between 20,000 km and 50,000 km last year. Ans: 20/30
e) drove more than 50,000 km, given that they did not have an accident.
Ans: 35/70
-----------
Cheers,
Stan H.
|
|
|
