5) The senior classes at High School A and High School B planned separate trips to the state fair. The senior class at High School A rented and filled 7 vans and 6 buses with 275 students. High
School B rented and filled 4 vans and 2 buses with 110 students. Each van and each bus carried
the same number of students. How many students can a van carry? How many students can a
bus carry?

where did you get them? if you picked from the grass, is is probably poisonous.

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