Question 9 of 25

[tex]$A$[/tex] and [tex]$B$[/tex] are independent events. [tex]$P(A) = 0.80$[/tex] and [tex]$P(B) = 0.10$[/tex]. What is [tex]$P(A \text{ and } B)$[/tex]?

A. 0
B. 0.08
C. 0.90
D. 0.008



Answer :

To solve the problem of finding the probability of both events [tex]\(A\)[/tex] and [tex]\(B\)[/tex] occurring, given that [tex]\(A\)[/tex] and [tex]\(B\)[/tex] are independent events, we need to use the multiplication rule for independent events.

The multiplication rule for independent events states that if [tex]\(A\)[/tex] and [tex]\(B\)[/tex] are independent, then the probability of both [tex]\(A\)[/tex] and [tex]\(B\)[/tex] occurring is given by the product of their individual probabilities:
[tex]\[ P(A \text{ and } B) = P(A) \times P(B) \][/tex]

We are given:
[tex]\[ P(A) = 0.80 \][/tex]
[tex]\[ P(B) = 0.10 \][/tex]

Substitute the given probabilities into the multiplication rule:
[tex]\[ P(A \text{ and } B) = 0.80 \times 0.10 \][/tex]

Perform the multiplication:
[tex]\[ P(A \text{ and } B) = 0.08 \][/tex]

Thus, the probability of both [tex]\(A\)[/tex] and [tex]\(B\)[/tex] occurring is [tex]\(0.08\)[/tex].

The correct answer is:
B. 0.08