7. You are selling lemonade for $1.50, a bag of kettle corn for $3, and a hot
1 answer:
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Explanation:
Since we have given that
The prices of three t-shirts styles i.e $24, $30, $36 with their probability is given by
As we know that,
Now,
and
So,
So, the expected value of a t-shirt = $31.
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To solve for x, simplify both sides of the equation and then isolate the variable:
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