Question

Use the following table to answer the question.

X A B C D
P(X) 0.30 0.20 ? 0.28

Find P(A and B) assuming that A and B are independent.

Answer 1

you multiply 0.30 times 0.20 subtract 0.28

Answer 2

ok thanks

Answer 3

but that would be -22 and i thought probobiltiy cant be a negative