The following represent the results of a survey in which the individuals were as
ID: 3179124 • Letter: T
Question
The following represent the results of a survey in which the individuals were asked to disclose what they perceive to be the ideal number of children.
0
1
2
3
Total
Female
20
35
35
10
100
Male
34
31
30
5
100
Total
54
66
65
15
200
a) What is the probability a randomly selected individual who took the survey is female or believes the ideal number of children is 2?
b) Among the females, what is the probability the individual believes the ideal number of children is 2?
c) If the individual who believes the ideal number of children is 3 is randomly selected, what is the probability the individual is male?
0
1
2
3
Total
Female
20
35
35
10
100
Male
34
31
30
5
100
Total
54
66
65
15
200
Explanation / Answer
a) The probability a randomly selected individual who took the survey is female or believes the ideal number of children is 2 = 35/200 = 0.175
b) Among the females, the probability that the individual believes the ideal number of children is 2 = 35/100 = 0.35
c) The individual who believes the ideal number of children 3 is randomly selected, the probability that the individual is male = 5/15 = 0.3333