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3 years ago

What is the formula for standard deviation.

1 answer:

3 0

Answer:

Work out the Mean (the simple average of the numbers)

Then for each number: subtract the Mean and square the result.

Then work out the mean of those squared differences.

Take the square root of that, and that would be the answer.

You might be interested in

Write each ratio as a fraction in lowest terms. 8 to 9

3241004551 [841]

Answer:

8/17 and 9/17

Step-by-step explanation:

8:9

both add up to 17

so it can be 8/17 or 9 but it cannot be simplified unless if you want them both as a mixed number which is

8/17 as a mixed number is 2 1/17

9/17 as a mixed number is 1 8/17

8 0

2 years ago

I need help with this question please and thank you

marissa [1.9K]

Answer:

y = -1x + 3 or f(x) = -1x + 3

Step-by-step explanation:

Rise/run = 3/-3 = -1

Crosses the y-axis at 3

y = -1x + 3 or f(x) = -1x + 3

8 0

3 years ago

Read 2 more answers

Y = 1/2x -4 plz show the graph, I really need to know! But it's 8th grade math!

Usimov [2.4K]

Answer:

(-4, 8)

Step-by-step explanation:

4 0

3 years ago

If someone does this I'll give you 5 stars and follow you!

Sonja [21]

Answer:

The picture is really blurry, i can't see the questions

6 0

2 years ago

Consider the following set of sample data: (34, 32, 34, 32, 40, 37, 31, 31, 29, 27). We're interested in using this data to test

rosijanka [135]

Answer:

Option I and II

Step-by-step explanation:

I. Assuming this represents a random sample from the population, the sample mean is an unbiased estimator of the population mean.

II. Because they're robust, t procedures are justified in this case.

The t procedures are utilized because they are used as a hypothesis testing tool, which allows for testing of an hypothesis applicable to a population where in this case we are testing the null hypothesis about the population mean.

7 0

3 years ago