Answer: 
Step-by-step explanation:
Let A = he known the answer then A' = he guess the answer.
B = he answered it correctly
As per given , we have



By Bayes theorem , we have

The probability that the student knows the answer given that he answered it correctly is
.
Answer:
-40 I wanna say
Step-by-step explanation:
The answer is y=24 your welcome
1.364 the line goes over the 3 and 6 not over the four.