Rations Select all of the following tables which represent y as a function of I.
365
T
y
C
y
-5
val
-1
3
-2
2
1
4
-4
2
5
2
um
6
7
16
8
8
7
13
12
10
T
y
T
y
-5
-1
2
-1
3
1
-2
1
5
7
4
6
3
8
8
9
2
1
14
16
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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