Answer:
The probability that an internet user uses Twitter and has a wireless connection is 0.135.
Step-by-step explanation:
Given that,
54% of internet users have a wireless connection.
25% use Twitter to share updates, given that the user have a wireless.
Let A be a user who uses a wireless connection.
Let B be a user who uses Twitter.
P(A)=54%=0.54
P(B|A)= 25%=0.25
![P(B|A)=\frac{P(A\cap B)}{P(A)}](https://tex.z-dn.net/?f=P%28B%7CA%29%3D%5Cfrac%7BP%28A%5Ccap%20B%29%7D%7BP%28A%29%7D)
⇒P(A∩B)=P(A)P(B|A)
⇒P(A∩B)= 0.54×0.25
⇒P(A∩B)=0.135
The probability that an internet user uses Twitter and has a wireless connection is 0.135.