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Mathematics 7 Online
OpenStudy (logan13):

What is the mean of Variable A? Express answer to one decimal place.

OpenStudy (logan13):

http://prntscr.com/9zkuif

OpenStudy (astrophysics):

The mean is the average of the numbers

OpenStudy (logan13):

3.5

OpenStudy (astrophysics):

How do you find the mean of something?

OpenStudy (astrophysics):

Add all the points then divide by the amount of points given right?

OpenStudy (logan13):

so would it be 3.5

OpenStudy (astrophysics):

So if you want a formula we can say, \[Average = \frac{ 1 }{ n } \sum_{i=1}^{n} x_i\] where n is the number of terms and xi are all the individual numbers given, the notation means to sum it all up, so for you this implies, \[A=\frac{ 2+2+4+5+6+7+8+9 }{ 8 }\]

OpenStudy (logan13):

8.

OpenStudy (logan13):

@Astrophysics

OpenStudy (astrophysics):

All you have to do is calculate what I wrote above, that is your answer.

OpenStudy (logan13):

i got like 43

OpenStudy (astrophysics):

Then divide by 8..

OpenStudy (logan13):

35

OpenStudy (logan13):

.1

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