Answer:
0.58 = 58% probability she passes both courses
Step-by-step explanation:
We have two events, A and B.
In which:
is the probability of at least one of these events happening.
P(A) is the probability of A happening.
P(B) is the probability of B happening.
is the probability of both happening.
In this question:
Event A: Passes the first course.
Event B: Passes the second course.
The probability she passes the first course is 0.7.
This means that
The probability she passes the second course is 0.67.
This means that
The probability she passes at least one of the courses is 0.79.
This means that
What is the probability she passes both courses
0.58 = 58% probability she passes both courses