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Alik [6]
4 years ago
8

60 percent of students have car and iPad 70 percent have a car

Mathematics
2 answers:
SSSSS [86.1K]4 years ago
8 0

Answer:

P =0.857

Step-by-step explanation:

We know that 60% of students have an iPad and a car and 70% have a car.

If we call <em>A</em> the event "have an iPad" and call the event <em>B</em> "have a car"

So

P (A\ and\ B) = 0.6\\\\P(B) = 0.7

We look for the probability that a student with a car also has an iPad. This is

P (A | B) = \frac{P(A\ and\ B)}{P(B)}\\\\P (A | B) = \frac{0.6}{0.7}\\\\P (A | B) = 0.857

gregori [183]4 years ago
6 0

Answer:

86%

Step-by-step explanation:

To solve this problem you need to use the formula for conditional probability.  

P(Ipod|Car) = P(Car and Ipod)P(Car).

P(a student with a car also has an iPod) = 0.6/0.7 = 0.857 = 86%

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