Question

The table below contains data on individual’s usage of a social media platform. It categorizes the data on the age range of the individual and their reported usage level. Use this table to answer the question that follows it.

The table below contains data on individual’s usage of a social media platform. It categorizes the data on the age range of the individual and their reported usage level. Use this table to answer the question that follows it.

	Low	Moderate	High
18-30	286	592	464
31-55	209	438	381
56+	254	237	139

What is the probability that a randomly selected individual reports a high usage level given that they are in the 31 to 55 age range?

Answer 1

From the given data, the following Table is calculated:

	Low	Moderate	High	Total
18-30	286	592	464	1342
31-55	209	438	381	1028
56+	254	237	139	630
Total	749	1267	984	3000

P(High/ 31-55)= P(High AND 31-55)/ P(31-55)

                   = 381/ 1028

                      = 0.3706

So,

Answer is:

0.3706