Try everything you can find to see if you feel like its right
We're told that



a. We want to find
. By definition of conditional probability,

By the law of total probability,

Then

(the first equality is Bayes' theorem)
b. We want to find
.

since
.
Answer:
7) D
8) A
9) A
10) D
11) C
12) B
Step-by-step explanation:
Answer:
72 degrees
Step-by-step explanation:
Delta Math