225k views
4 votes
Describe and correct error

Describe and correct error-example-1
User KRR
by
6.0k points

1 Answer

3 votes
Option b, it should be multiplied.

Remember the two formulas:
P(A and B) = P(A) * P(B)
P(A or B) = P(A) + P(B) - P(A and B)
User Matthew Woodard
by
6.5k points