Here is some data showing the age and value of 12 cars. Draw a scatter diagram in your book and state the coordinates of the point that is most likely
an outlier.
Age (years)
3
5
4
8
6
1
7 13
6
7
2
4
Value (£ 000's)
47
38
40
19
39
74
27
58
33
73
64
51

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

answer: your correct answer is b. d.

step-by-step explanation: