Which sequence is represented by the function f(n) = –13 – 2n? Hint: (remember you can switch the -13 and the -2n just watch your signs!)
A.
–15, –17, –19, –21, . . .
B.
–13, –15, –17, –19, . . .
C.
–13, –28, –43, –58, . . .
D.
–2, –13, –24, –35, . . .

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