Tree type height (meters) birch 3 1 4 3 4 1 3, start fraction, 1, divided by, 4, end fraction spruce 2 7 8 2 8 7 2, start fraction, 7, divided by, 8, end fraction oak 3 1 2 3 2 1 3, start fraction, 1, divided by, 2, end fraction what is the difference between the heights of the birch and spruce trees?

one of each metals

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