the correct question is
Evaluate the expression divided by
we have
therefore
the answer is
The expectation to play the game is $2.5 and the fair price to play is $7.5.
The expectation is defined as the weighted average value of the random variable which is the product of the value of the random variable and its possibility.
Expectation= ∑P(win)*amount of win or loss of random variable
=∑x*P(x)
Here given that there are only two possible outcomes $5 and $10. And the possibility of every outcome is the same which is 0.5 as they occupy the same area.
As we know
Expectation= ∑P(win)*amount of win or loss of random variable
= 0.5(5-5) +0.5(10-5)
=0.5*0 + 0.5*5
=0+2.5
=$2.5
As fair price= expectation + cost of play
⇒fair price= $2.5 + $5
⇒fair price= $7.5
Therefore the expectation to play the game is $2.5 and the fair price to play is $7.5.
Learn more about expectation
here: brainly.com/question/10675141
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Answer:
(a)
(b)
Step-by-step explanation:
First pic is a second is b
Answer:
The area would increase 6 times
Explanation:
The area of the triangle can be calculated as follows:
area =
Tripling the side lengths of a right triangle would mean that:
new base = 3 * base
new height = 3 * height
Substitute with the new values in the equation:
new area =
new area =
Comparing the new area with the original one, we can conclude that by tripling the side lengths of the right triangle, the area of the triangle will increase 6 times.
Hope this helps :)
Simplify both sides of the equation
-7.12 = x-4.8
Flip the equation
x - 4.8 = -7.12
Add 4.8 to both sides
x-4.8+4.8 = -7.12 + 4.8
x = -2.32
I hope that's help !
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