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mojhsa [17]
3 years ago
5

Which equation could have the graph shown below?

Mathematics
1 answer:
mars1129 [50]3 years ago
6 0

Answer:

  1. y = ( x +4)(x +1 )(3_x

Step-by-step explanation:

because the line were there

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The decrease of 50 by 40% is what?
Wewaii [24]

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Step-by-step explanation:

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2 years ago
Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively.
TiliK225 [7]

Answer:

d. 200 and 2

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

Mean = 200

Standard deviation = 18

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Standard error: s = \frac{18}{\sqrt{81}} = 2

So the correct answer is:

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7 0
3 years ago
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3 years ago
1,000 yards to kilometers.
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Step-by-step explanation:

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