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3 years ago

-13.5-2.13.7= Show your work

Mathematics

1 answer:

ELEN [110]3 years ago

3 0

Answer:

-2.1

Step-by-step explanation:

Write it laterally (Up and down)

-13.5

- 2.3

-15.8

+ 13.7

-2.1

Hope this helps :)

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Answer:

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And we can find this probability to find the answer:

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And using the normal standar table or excel we got:

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Step-by-step explanation:

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

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Where $\mu=0.917$ and $\sigma=0.303$

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And we can use the z score formula given by;

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And if we find the z score for the value of 0.872 we got:

$z = \frac{0.872-0.917}{\frac{0.303}{\sqrt{37}}}= -0.903$

And we can find this probability to find the answer:

$P(z$

And using the normal standar table or excel we got:

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