Explain how you can mentally determine whether there is a remainder when 18,450 is divided by 6

1 answer:

6 0

For a number to be divisible by 6, it must also be divisible by 2 and 3. Therefore, we need to check if a number is even and then check if the sum of the digits is divisible by 3.

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How do you write 19% as a fraction in simplest form?

zmey [24]

19% is 19/100 and there is nothing that can go into these numbers evenly so this is the simplest form

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3 years ago

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How does the sample size affect the validity of an empirical argument? A. The larger the sample size the better. B. The smaller

astra-53 [7]

Answer:

A. The larger the sample size the better.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes 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 $s = \sqrt{\frac{p(1-p)}{n}}$

In this question:

We have to look at the standard error, which is:

$s = \frac{\sigma}{\sqrt{n}}$

This means that an increase in the sample size reduces the standard error, and thus, the larger the sample size the better, and the correct answer is given by option a.

7 0

2 years ago

Which method is best using this equation 4x-2y=-2,-5x+6y=-15 and why

kipiarov [429]

I think that using the elimination method is the best, because it is the only method that I use when solving these types of equation. For example, for these two equations, you need to multiply one of the equations by a certain number so that you'd be able to find x and y. The elimination method is the method that tells you to do that. It is also the easiest method.

~Hope I helped!~

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3 years ago

Which unit rate is equivalent to 13 miles per gallon? twenty-six miles over two gallons : two gallons over twenty-six miles thir

jeka94

Twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

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Juan earns $625 per week. He is married and claims 3 withholding allowances. He pays $90 each

atroni [7]

Answer:

what is this

Step-by-step explanation:

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2 years ago