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3 years ago

What are all the factors and multiples of 13

Mathematics

2 answers:

SCORPION-xisa [38]3 years ago

7 0

Basically, you're adding 13 each time. So it would be:

(13)

13+13= 26

26+13= 39

And so on.

Vanyuwa [196]3 years ago

6 0

nothing can be 13 by multiplying numers

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Answer:

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Step-by-step explanation:

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vlada-n [284]

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-------------------------------\\\\
\boxed{a}\\\\
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\boxed{b}\\\\
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Answer:

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So then is appropiate use the normal distribution to find the probabilities for $\bar X$

Step-by-step explanation:

Previous concepts

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Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(61,14)$

Where $\mu=61$ and $\sigma=14$

Since the distribution for X is normal then the distribution for the sample mean $\bar X$ is also normal and given by:

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

$\mu_{\bar X} = 61$

$\sigma_{\bar X}= \frac{14}{\sqrt{6}}= 5.715$

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