Question

If P(A or B) = 0.6 P(B) = 0.3 and P(A and B) = 0.3

Determine P(A)

Answer 1

Use the equation for
\[P(A\cup B )= P(A) + P(B) - P(A\cap B)\]
and solve for P(A)

Answer 2

6?

Answer 3

6 is not right.
All probabilities are between 0 and 1, or [0,1].
But you might have made a simple arithmetical error.
Please try again.

Answer 4

0.6

Answer 5

yup

Answer 6

Perfect! :)