Cindy has a board that is 7 inches wide and 23 1/4 inches long. She needs to use the word to replace shelf that is 15 and seven eights inches long. Cindy hopes that the remaining piece of board is long enough to make a 7” x 7“ square she can use to put under a house plant so it will receive more sunlight. How long is the remaining piece of board? Is it long enough?

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

idk what the heck he answer is, i’m just putting this here so i finish my account