The probability that a randomly selected person will use FB or LI is: 0.65
The probability that a randomly selected person will not use either social media platform is: 0.35
What is the probability of using the social media platform?
The probability of using the social media platform is:
Probability(F or L) = Probability (F) + P(L) - P(F and L)
= 0.63 + 0.26 - 0.24
= 0.65
The probability that a randomly selected person will not use either social media platform is as follows: 1 - 0.65 = 0.35.
The reason for the above is that this value is complementary to the value of using either of the social media platforms.
Complete Question:
A recent survey examined the use of social media platforms. Suppose the survey found that there is a 0.63 probability that a randomly selected person will use Facook and a 0.26 probability that a randomly selected person will use LiedIn. In addition, suppose there is a 0.24 probability that a randomly selected person will use both Faceok and LinIn.
(a)
What is the probability that a randomly selected person will use Faceok or LidIn?
(b)
What is the probability that a randomly selected person will not use either social media platform?