Answer:
6 + (7 + 8) = 21
Step-by-step explanation:
the associative property of addition is: (a + b) + c = a + (b + c)
So the equivalent addition sentence would be:
(6 + 7) + 8 = 6 + (7 + 8) as they both equal 21
Answer:
reference attached
Step-by-step explanation:
<h2>
<em><u>hope it helps you <3</u></em></h2>
There are different ways to estimate a variable. The sample mean is a point estimate of the population mean for the variable of interest.
<h3>What is a point estimate of the population mean?</h3>
A point estimate is known to be the value of a sample statistic that is often applied as one estimate of a specific population parameter.
The sample mean is defined simply as a form of average value seen in a sample. A sample is known to be the little portion of a whole.
Learn more about sample mean from
brainly.com/question/7597734
Answer:
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Step-by-step explanation:
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(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)
