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2 years ago

12

For the data set 6, 5, 10, 11, 13, the mean, X, is 9. What is the standard deviation?

1 answer:

Ket [755]2 years ago

4 0

Answer:

standard deviation = 3.0331

Step-by-step explanation:

You can solve for this two different ways.

If you have a TI-84 calculator or something similar, type all the data into list 1. Then click the stat button, then the calc button, then 1-vars stats. This will give you mean, standard deviation, median, mode, etc.

If you are solving by hand, find the different between each data point and the mean. Square these numbers and find the average. Then take the square root of that.

3^2 + 4^2 + 1^2 + 2^2 + 4^2 = 46

46/5 = 9.2

square root of 9.2 = 3.0331

Hope this is helpful!!!!!!!!!!! :)

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3 years ago

Use the method illustrated in the solutions to Exercise 9.2.39 to answer the following questions. (a) How many ways can the lett

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Answer:

(a) 720 ways

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Step-by-step explanation:

Given

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We have:

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DA as a unit implies that, we have:

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So, the number of arrangements is calculated as:

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This gives:

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Solving (c): NCE as a unit

NCE as a unit implies that, we have:

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So, we have:

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8 0

3 years ago

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Answer:

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Step-by-step explanation:

See the picture below

Now, we can do proportions to finds the height of the light pole

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2 years ago

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zlopas [31]

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Step-by-step explanation:

(SUBSTITUTION)

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3 years ago

Read 2 more answers

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kupik [55]

Answer:

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Step-by-step explanation:

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7 0

2 years ago