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solong [7]
3 years ago
11

Hanna arranged financing for her bachelor’s degree. She borrowed $5,000 as a student loan backed by the federal government, and

she also received a grant of $3,000 for books and supplies. Hanna is also in the top 3% of her high school class and was awarded a $15,000 scholarship for her academic achievements. Lastly, Hanna took out a private loan for $6,000.
Not counting any interest Hanna may have to pay, how much of her financing is she required to pay back?

$8,000
$21,000
$18,000
$11,000
Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
6 0

Answer:

11,000 because you dont have to pay back grants

(please rate and thank)

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Answer:

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a) E(X) = \sum xP(x)

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b)

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c)

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d)

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e)

E(3X^{2} +2) = 3E(X^{2} ) + 2\\E(3X^{2} +2) = (3*57.25) + 2 \\E(3X^{2} +2) = 173.75

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g)

E(X+1) = E(X) + 1\\E(X+1) = 6.45 + 1\\E(X+1) =7.45

h)

V(X+1) = 1^{2} V(X)\\V(X+1) = 15.648

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