How do you know if the equation for a problem is multiplication
2 answers:
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The lottery's anticipated worth is $80.
Given that,
The probability of receiving $125 is 0.25; the likelihood of receiving $100 is 0.3; and the likelihood of receiving $50 is 0.45.
A) EV=125*.2+100*.3+50*.5=$80
The lottery's anticipated worth is $80.
The expected value is obtained by multiplying each result by its likelihood.
The expected value of the lottery is then calculated by adding up all of these.
This is what we have: ;;
125(0.2) + 100(0.3) + 50(0.5) (0.5)
= 25 + 30 + 25 = $80
B) This is the formula for variance is shown in figure :
So, we can calculate the variance as follows:
.2*(125-80)^2+.3*(100-80)^2+.5*(50-80)^2=975
C) A risk-neutral person would pay $80 or less to play the lottery.
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Answer:
<em>CA = 15.</em>
Step-by-step explanation:
<u>Similar Triangles</u>
It's given triangle ABC is similar to triangle PQR. Similar triangles have their side lengths proportional by the same scale factor.
To find the scale factor, divide the lengths of two corresponding sides. Sides AB and PQ are corresponding, and the proportion between them is 12/8 = 3/2.
Now we find the required lengths by using the same proportion.
BC is corresponding with QR, thus
Solving for BC:
CA is corresponding with RP, thus:
Solving for CA:
CA = 15