4 years ago

When a student is selected at random from a population of high school students, the

Mathematics

1 answer:

horrorfan [7]4 years ago

5 0

Answer:

Pr(tablet given smartphone) = 18%

Step-by-step explanation:

Let:

probability that the student has a smartphone = Pr(smart phone)

Pr(smart phone) =0.71

the probability that the student has a tablet = Pr(tablet)

Pr(tablet) = 0.28

the probability the student has both = Pr(both)

Pr(both) = 0.13

the probability a student has a tablet given they have a smartphone = Pr(tablet given smartphone)

Pr(tablet given smartphone) = Pr(tablet & smartphone)/Pr(smart phone)

Pr(tablet given smartphone) = 0.13/0.71

Pr(tablet given smartphone) = 0.183 = 18.3%

Pr(tablet given smartphone) = 18%

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