Question

Suppose a student dormitory
college consist of
30% freshman & whom 10 %, own a car
40% sophomores of whom 20% own a car
20% juniors of whom 40% own a car
10% of seniors whom 60% own a car
find the probability that a student in the edormitory owns a car
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Answer 1

Answer:

i think 100%

bcoz 10+20+30+40=100

okay