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Anuta_ua [19.1K]
3 years ago
9

What is the sum or difference of (x+18)+(-x+4)​

Mathematics
1 answer:
MariettaO [177]3 years ago
4 0

Answer:

the answer to (x+18)+(-x+4) is 22

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If we consider the simple random sampling process as an experiment, the sample mean is a. a random variable. b. always zero. c.
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The sample mean is an estimate of the population mean.

The sample mean is exactly equal to the population mean

<h3>How to determine the true statement</h3>

When the population mean is known; the value of the population mean can be used as the sample mean.

This is so because:

The sample mean is an estimate of the population mean.

And it is represented as:

\bar x = \mu

Hence, the true statement is that the sample mean is exactly equal to the population mean

Read more about sample mean at:

brainly.com/question/12892403

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