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2 years ago

-4c - 1 > 15 Please help me and show your calculations !

Mathematics

1 answer:

padilas [110]2 years ago

6 0

Answer:

c < - 4

Step-by-step explanation:

- 4c - 1 > 15 ( add 1 to both sides )

- 4c > 16

Divide both sides by - 4 , reversing the symbol as a result of dividing by a negative quantity.

c < - 4

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3 years ago

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3 years ago

According to the Central Limit Theorem, which statements(s) are TRUE. There may be more than 1 correct answer. A. An increase in

Liono4ka [1.6K]

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Options A, B and C are correct.

Step-by-step explanation:

Central Limit Theorem

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.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean $\mu = p$ and standard deviation $s = \sqrt{\frac{p(1-p)}{n}}$

From the Central Limit Theorem, we have that:

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The larger the sample size, the smaller the standard deviation.

The smaller the sample size, the larger the standard deviation.

So the correct options are:

A, B, C

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2 years ago