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Mathematics, 29.01.2020 04:50, Ully4559
There are three cell phone models in a store. when selecting a new cell phone, 25% of the customers choose model a, 33% choose model b, and 32% choose model c. the remaining customers buy from an old collection on which the average profit is $50. if the average profit earned on models a, b, and c is $60, $75, and $40, respectively, what is the expected value of the profit earned on all models?
a] $55.75
b] $57.55
c] $59.25
d] $60.25
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Answers: 3
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Mathematics, 22.06.2019 04:40, Jermlew
Rena used the steps below to evaluate the expression , when . step 1: substitute into the expression. step 2: simplify the parentheses. step 3: evaluate the power to a power. step 4: use reciprocals and find the value. in which step did rena make the first error?
Answers: 2
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There are three cell phone models in a store. when selecting a new cell phone, 25% of the customers...
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