3 years ago

Susie divided 9-POUND bag of apples into 5 equal piles. how many pounds of apples are in each pile

Mathematics

1 answer:

Alona [7]3 years ago

5 0

Answer=1.8pounds

9/5=1.8 pounds

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I think it is:

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3. From the table below, find Prof. Xin expected value of lateness. (5 points) Lateness P(Lateness) On Time 4/5 1 Hour Late 1/10

wariber [46]

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The expected value of lateness $\frac{7}{20}$ hours.

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3 Hours Late 1/20

The formula of expected value of a random variable is:

$E(X)=\sum x\cdot P(X=x)$

Compute the expected value of lateness as follows:

$E(X)=\sum x\cdot P(X=x)$

$=(0\times \frac{4}{5})+(1\times \frac{1}{10})+(2\times \frac{1}{20})+(3\times \frac{1}{20})\\\\=0+\frac{1}{10}+\frac{1}{10}+\frac{3}{20}\\\\=\frac{2+2+3}{20}\\\\=\frac{7}{20}$

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