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3 years ago

Convert 6.28km into metres

Mathematics

2 answers:

ycow [4]3 years ago

6 0

Answer:

8275382+9162672(7263382) 615-41+8162(71818)

Vlad [161]3 years ago

6 0

Answer:

6280m

Step-by-step explanation:

6.28×1000m

=6280m

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Answer:

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And replacing we got:

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And then the expected value would be:

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Step-by-step explanation:

We assume the following distribution given:

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Part a

We can find the expected value with this formula:

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And replacing we got:

$E(Y) =0*0.60 +1*0.25 +2*0.1 +3*0.05 = 0.60$

Part b

If we want to find the expected value of $100 Y^2$ we need to find the expected value of Y^2 and we have:

$E(Y^2) = \sum_{i=1}^n Y^2_i P(Y_i)$

And replacing we got:

$E(Y^2) =0^2*0.60 +1^2*0.25 +2^2*0.1 +3^2*0.05 = 1.1$

And then the expected value would be:

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3 years ago

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kolezko [41]

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