Simone is stranded on an island. the probability of her finding safety by waiting for is \dfrac14 4 1 start fraction, 1, divided by, 4, end fraction. the probability of her finding safety by leaving in her raft is 0.320.320, point, 32.

it should be a and d. lmk if i'm wrong xd

it would be 6xy and -16xy.

step-by-step explanation:

bob the banana

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