Let's say that you want to paint a room in your house. the room has rectangular walls. each wall is 8 feet high. two of the walls are 15 feet long, and the other two walls are 12 feet long. based on these measurements, what is the total area of the walls of the room in square feet? (hint: calculate the area of each wall, and add the 4 areas together.) 416 432 454 488

three-fourths of an hour

36÷48=0.75

0.75=

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