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3 years ago

5

Yesterday it was -14°F in Nome, Alaska. At the same time it was 43°F in Austin, Texas. What was the DIFFERENCE in the temperatur

es of these two cities?

1 answer:

Allisa [31]3 years ago

3 0

Answer:

57°F differences

Step-by-step explanation:

-14+57= 43

43-57= -14

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Answer:

6.67

Step-by-step explanation:

Because in the park there are 30 people OK

15 were walking

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6 were running.

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Step-by-step explanation:

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Part a

The expected value is given by:

$E(X) =\frac{a+b}{2}= \frac{10+12}{2}= 11$

The variance is given by:

$Var(X) = \frac{(b-a)^2}{12}= \frac{(12-10)^2}{12}= 0.3333$

And the standard deviation is just the square root of the variance and we got:

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Part b

For this case we want this probability:

$P(X$

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And using this function we got:

$P(X$

Part c

For this case we want this probability:

$P(X>10.5)$

And using the complement rule and the cumulative distribution function we got:

$P(X>10.5)= 1-P(X$

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Answer:

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Step-by-step explanation:

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