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VARVARA [1.3K]
3 years ago
14

Please help me, with as many questions as you can?

Mathematics
1 answer:
Feliz [49]3 years ago
3 0
A) you need to do 2+3=5 then divide £20 by 5 which equals 4, the ratio is 2:3 so you do 4x2 which equals 8 then you do 4x3=12. So your answer would be 8:12
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A researcher selects all of the possible samples with n = 8 scores from a population and computes the mean, dividing by n, for e
Nadusha1986 [10]

Answer:

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Step-by-step explanation:

We use the central limit theorem to solve this question.

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

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3 0
4 years ago
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Distribute and combine like-terms!

-4x + 12x - 2x - 2

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