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

Answer:

$P(Both) = 26\%$

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%