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Y_Kistochka [10]
3 years ago
5

Michael cycled a distance of miles in hours. What is his cycling unit rate in miles per hour?Michael cycled a distance of miles

in hours. What is his cycling unit rate in miles per hour?
Mathematics
1 answer:
notka56 [123]3 years ago
8 0

Answer:

The number of miles/the number of hours

Step-by-step explanation:

If the number of hours is not equal to 1, multiply the numerator and denominator by the inverse of the number of hours.

For example, 10 (miles)/2 (hours)

The inverse of 2 is 1/2, so --> the new equation is 10/2 * 1/2 / 1/2 or

10* 1/2 and 2 * 1/2

When multiplied out, this leads to 5/1 or 5 miles per hour

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Answer:

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Step-by-step explanation:

Previous concepts

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Solution to the problem

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

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If you found this helpful please let me know! I’m always striving to improve my answers! Have a wonderful day!

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