Question

A recent iPad survey reported that 48% of users utilized game apps daily, 34% used an electronic book app daily, and 58% had used the game apps or the electronic book apps on a daily basis. What is the probability that a randomly selected iPad user will use both apps on a daily basis?

Answer 1

`P(Both) = 26\%`

Step-by-step explanation:

Given

`Game\ Apps = 48\%`

`Electronic\ Book\ Apps = 34\%`

`Either = 58\%`

Required

Determine the probability that a user will use both

Represent this probability with P(Both)

In probability:

`P(A\ and\ B) = P(A) + P(B) - P(A\ or\ B)`

In this case, we have:

`P(Both) = P(Game\ Apps) + P(Electronic\ Book)-P(Either)`

This gives:

`P(Both) = 48\% + 34\% - 58\%`

`P(Both) = 26\%`

Hence, the probability that a user uses both apps is 26%