Question

At the mall, buying a pair of shoes and buying a book are independent events.The probability that a shopper buys shoes is 0.15. The probability that a shopper buys a book is 0.10.What is the probability that a shopper buys shoes and a book?

Answer 1

The answer is 0.015

Explanation:

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Answer 2

The probability that a shopper buys shoes and a book is 0.015

Explanation:

we are given

The probability that a shopper buys shoes is 0.15

so, we have

`p(s)=0.15`

The probability that a shopper buys a book is 0.10

so, we have

`p(b)=0.10`

the probability that a shopper buys shoes and a book can be written as

p(s∩b)

we are given that

s and b are independent

so,

p(s∩b)
`=p(s)* p(b)`

now, we can plug values

p(s∩b)
`=0.15* 0.10`

p(s∩b)
`=0.015`