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VMariaS [17]
3 years ago
6

How many times greater is 46 than 0.46? Explain to a classmate

Mathematics
2 answers:
Monica [59]3 years ago
5 0
46:0.46=\dfrac{46}{0.46}=\dfrac{46\cdot100}{0.46\cdot100}=\dfrac{4,600}{46}=\boxed{100}\\\\Answer:\huge\boxed{100\ times}
butalik [34]3 years ago
3 0
46 is 100 times bigger than 0.46. When you divid 46 by 100, you move the decimal twice to the left, and you get 0.46. You can also see that u move the decimal is 0.46 twice to get 46, so it's 100 times greater.
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Answer:

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}})

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Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

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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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