A family plans to have 3 children. For each birth, assume that the probability of a boy is the same as the probability of a girl
1 answer:
Answer:
c. 0.75
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
We have the following sample space
That is, the possible outcomes.
I am going to call boys b and girls g
b - b - b
b - b - g
b - g - b
b - g - g
g - b - b
g - b - g
g - g - b
g - g - g
Total outcomes:
8 outcomes
What is the probability that they will have at least one boy and at least one girl?
Desired outcomes:
At least one boy and at least one girl
b - b - g
b - g - b
b - g - g
g - b - b
g - b - g
g - g - b
Six desired outcomes.
Probability
The correct answer is:
c. 0.75
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Parallelograms have equal and parallel opposite sides
<em>The coordinates of the 4th point is (-2,3)</em>
Let the parallelogram be ABCD, such that:
A and B have the same y-coordinates, while their x-coordinates are additive inverse
This means that:
The y-coordinates of point C and point D will be the same, while their x-coordinates will be additive inverse.
<u>For point C</u>
We have:
<u>For point D</u>
The coordinates would be:
Hence, the coordinates of D is (-2,3)
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