The total cost, in dollars, of membership in a fitness center is given by the function c
(
m
)
=
20
m
+
40
c(m)=20m+40, where
m
m is the number of months a person is a member. In dollars, how much is the cost of a membership for 1 year?

it would take 7/10 of an hour too fill the pool.

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

the answer is b

answer: 0.26

i used the calculator on google