You have new classmate write them a letter explaining what a percent is how to write a percent

A percent is a part of 100. Percents are used often in the real world. For example, if I went to a grocery store and I had a special coupon for 50% off, I would have to pay half of what I would have paid without the coupon. You can write percents in different ways. You can write a decimal to a percent, a fraction to a percent and other numbers too.

80 the answer is 80

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