Question

The probability that Terry buys a sandwich is 0.4.

Answer 1

Answer:

The probability that Terry buys a sandwich and gets the bus is 0.36

Step-by-step explanation:

When two events are called independent, it means that the happening of one event doesn't affect the happening of other event.

Let A be the event that Terry buys a sandwich

Let B be the event that Terry gets the bus

Then

$P(A) = 0.4\\P(B) = 0.9$

When two events are independent, their probabilities are multiplied i.e.

$P(A\ and\ B) = P(A) * P(B)\\= 0.4 * 0.9\\= 0.36$

Hence,

The probability that Terry buys a sandwich and gets the bus is 0.36