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Shkiper50 [21]
2 years ago
10

the average age of my sample is 21.2 years. the average age of the target population is 19.4. the difference is probably due to

Mathematics
1 answer:
tamaranim1 [39]2 years ago
5 0

The difference in the average age of the sample and the population is probably due to sampling error

<h3>What is sampling error?</h3>

The sampling error in a statistical data is simply an error that arises when a sample that represents the population is not properly selected or analyzed

From the question, we have the following parameters:

\bar x = 21.2 -- the sample average

\mu = 19.4 -- the population average

Notice that:

\bar x \ne \mu

i.e. sample and the population averages are not equal.

This difference is often as a result of sampling error

Read more about sampling errors at:

brainly.com/question/19264268

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alexgriva [62]

Answer:

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Step-by-step explanation:

|4x−4(x+1)|=4

Simplify inside the absolute value by distributing the 4

|4x−4x+4|=4

Combine like terms

|4|=4

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3 years ago
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Let's examine the given function first:
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Comparing f(x) = x^2 + 1 to y = x^2, we see that the only difference is that f(x) has a vertical offset of 1.  So:  Graph y=x^2.  Then translate the whole graph UP by 1 unit.  That's it.  Note (again) that the vertex will be at (0,1), and (0,1) is also the y-intercept.
6 0
3 years ago
4) Allison practices her violin for at least 12 hours per week. She practices for three fourths of an hour each
zaharov [31]

Answer:

12

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which is basically 9 / ( 3/4)

\frac{9}{3/4}=\frac{9}{1} / \frac{3}{4}  = \frac{9}{1} * \frac{4}{3} = \frac{36}{3}  = 12

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2 years ago
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In the dilation of triangle TUV</span>, It is obvious that the image <span>T'U'V' is smaller than the original triangle TUV and hence the scale factor is less than 1.

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idk

Step-by-step explanation:

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