The temperature rose 7 degrees between 9:00 A. M. and 2:00 P. M.
yesterday. The temperature at
2:00 P. M. was 75°F. Wally used
the following equation to find the
temperature tat 9:00 A. M.
t + 7 = 75
Vhat was the temperature at 9:00 A. M.?

a

step-by-step explanation:

jjddbdhid r

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

explanation:

step-by-step explanation: