What is The factor to this problem?
A.(x+8)(x+7)
B.(x+15)(x+1)
C.(x-9)(x-6)
D.(x-3)(x-5)

(x-5) (x-3)

Step-by-step explanation:

x^2 -8x +15

We want to know what numbers multiply to 15 and add to -8

-5 *-3 = 15

-5+-3 = -8

(x-5) (x-3)

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