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3 years ago

4 to the second power divided by (3 + 1)

Mathematics

2 answers:

azamat3 years ago

6 0

Hello There!

$4^{2}$ is multiplying 4 by itself twice, so we would get an answer of 16.

Finally, we divide 16 by 4 because 3+1=4 and when we do this, we get a quotient of 4

Your Answer Is 4

Citrus2011 [14]3 years ago

5 0

Answer:

Step-by-step explanation:

3 + 1 = 4

4 to the second power / 4 is 4

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For a given IQ test, an individual is considered a genius if their score falls more than three standard deviations from the mean

ki77a [65]

Answer:

$P(Z>3) = 1-P(Z$

So then the probability that an individual present and IQ higher than 3 deviation from the mean is 0.00135

And if we find the number of individuals that can be considered as genius we got: 0.00135*1500=2.025

And we can say that the answer is a.2

Step-by-step explanation:

1) 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".

2) Solution to the problem

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

$X \sim N(\mu=?,\sigma=?)$

We are interested on this probability

$P(X>X+3\mu)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

And we can find the following probablity:

$P(Z>3) = 1-P(Z$

So then the probability that an individual present and IQ higher than 3 deviation from the mean is 0.00135

And if we find the number of individuals that can be considered as genius we got: 0.00135*1500=2.025

And we can say that the answer is a/2.0

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<h3>Properties of an Isosceles Triangle</h3>

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Learn more about isosceles triangle on:

brainly.com/question/11884412

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