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2 years ago

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Which equation shows an example of the associative property of addition? (–7 i) 7i = –7 (i 7i) (–7 i) 7i = 7i (–7i i) 7i × (–7i

i) = (7i – 7i) (7i × i) (–7i i) 0 = (–7i i)

1 answer:

mr Goodwill [35]2 years ago

5 0

The equation which shows the associative property of addition is; (–7 + i) +7i = –7 (i +7i).

<h3>What is the associative property of addition?</h3>

Associative property of addition postulates that Changing the grouping of addends does not change the sum of the numbers. As an instance, ( 5 + 3 ) + 4 = 5 + ( 3 + 4 )

Consequently, the equation which shows the associative property of addition is; (–7 + i) +7i = –7 (i +7i)

Read more on associative property of addition;

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The 95% confidence interval for the mean would be given by (56.604;68.596)

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When we compute a confidence interval for the mean, we are interested on the parameter population mean, and we use the info from the sample to estimate this parameter.

2) Basic operations

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Using excel we can use this function to calculate the mean:

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