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Hello students.
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Today we will discuss about this question.
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In this question we are given that ice cream usually comes in 1 .45 quart boxes and ice cream scoop holds about 2 ounces.
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However, there is some availability in the amount of ice cream in a box as well as the amount of ice cream in a box as well as the amount of of ice cream scooped out, we represent the amount of ice cream in the box as x and the amount of scooped as y.
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So suppose these random variables have the following means and standard deviation and the variances.
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So here we need to find the entire box of ice cream plus three scoop from a second box, that is served at a party, we need to find the standard deviation of the amount of ice cream served.
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So here, first of all, we are given that we will consider a variable z that we present the ice cream served in the party.
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So therefore, z that is equal to x plus 3y.
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So now the expected value of z that can be obtained as e of z that is equals to e of x plus i.
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So that is equals to e of x plus 3 e of y...