Question

Given that it was less than 80 degrees on a given day, what is the probability that it also rained that day?

Answer 1

According to the table, the probability that it also rained that day is 0.3

P(rain if less than 80°F) =0.3

Answer 2

P(80° with rain) = 0.30

Explanation:

It was less than 80 degrees on a given day. By the table relative frequency of less than 80 degrees and rain = 0.30

P(80° with rain) =
`\frac{\text{less than 80 degrees with rain}}{\text{total}}`

=
`(0.3)/(1.0)`

= 0.30

P(80° with rain) = 0.30