Joanne cannot decide which of two washing machines to buy. The selling price of each is $720. The first is marked down by 50%.
1 answer:
You might be interested in
Answer:
(a) The sample space is: S = {bb, bg, gb, gg}
(b) The probability that the couple has two girl children is 0.25.
(c) The probability that the couple has exactly 1 boy and 1 girl child is 0.50.
Step-by-step explanation:
A boy child is denoted by, <em>b</em>.
A girl child is denoted by, <em>g</em>.
(a)
A couple has two children.
The sample space for the possible gender of the two children are:
The couple can have two boys, two girls or 1 boy and 1 girl.
So the sample space is:
S = {bb, bg, gb, gg}
(b)
It is provided that the outcomes of the sample space <em>S</em> are equally likely, i.e. each outcome has the same probability of success.
Compute the probability that the couple has two girl children as follows:
P (2 Girls) = Favorable no. of outcomes ÷ Total no. of outcomes
Thus, the probability that the couple has two girl children is 0.25.
(c)
Compute the probability that the couple has exactly 1 boy and 1 girl child as follows:
P (1 boy & 1 girl) = Favorable no. of outcomes ÷ Total no. of outcomes
Thus, the probability that the couple has exactly 1 boy and 1 girl child is 0.50.
Answer: 33) b 34) a 35) none
<u>Step-by-step explanation:</u>
33)
Filling in the Venn Diagram (from Left to right, including outside of circles):
T only = 13
(T ∩ F)only = 6
F only = 21
(T ∩ D) only = 3
T ∩ F ∩ D = 5
(F ∩ D) only = 8
D only = 15
<u>(T ∪ F ∪ D)' = 11 </u>
TOTAL = 82
34)
Red = 26
Face = 12
Red ∩ Face = 6
Total cards = 52
R ∪ F = R + F - (R ∩ F)
= 26 + 12 - 6
= 32
35) Note that the total is 34 + 17 + 8 + 3 + 9 + 4 + 5 = 80
<em>I think the teacher made an error, if so, then the answer is "d".</em>