3 years ago

what is the population of the Emperor penguin rounded to the nearest ten thousand and to the nearest hundred thousand

Mathematics

1 answer:

gogolik [260]3 years ago

7 0

Answer:

130,000 to 250,000

Step-by-step explanation:

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$P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-\mu}{\sigma})=P(Z>\frac{60-49}{16})=P(z>0.6875)$

And we can find the probability with the complement rule and the normal standard distirbution and we got:

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Step-by-step explanation:

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

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Where $\mu=49$ and $\sigma=16$

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Using this formula we got:

$P(X>60)=P(\frac{X-\mu}{\sigma}>\frac{60-\mu}{\sigma})=P(Z>\frac{60-49}{16})=P(z>0.6875)$

And we can find the probability with the complement rule and the normal standard distirbution and we got:

$P(z>0.6875)=1-P(z$

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