Two students are asked to come to the board to work a math problem. each student could work an easy question (e) or a hard question (h).

you can use sniping tool serch it up on your pc and take a picture of it and draw the answer in the boxes i will have 1 picture of the question one pic of what i meen for snipping tool and what sniping tool looks like

okay, if you need all you need to do is ask, and i'll do my best to assist you.

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560