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 .
In the situation '<span>Each letter of the English alphabet is written on a scrap of paper and put in a hat p(j)= 1/26', the type of probability illustrated is classical or mathematical probability. This is because 1 represents the number of expected outcomes of the event while 26 represents the total number of outcomes.</span>
1/3x - 8 = y <== ur equation
Multiply first equation with 2. Then add first and second, we get -x=6. X=-6 and y=-29
Just do 45x0.2 then take that number off of $45 thats your answer