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Mariulka [41]
3 years ago
5

Find the mean and range. 26 19 23 39 31 34 23 25

Mathematics
2 answers:
sveticcg [70]3 years ago
7 0
Range: largest number minus the smallest number
39 - 19 = 20
your range is 20

Mean: add all of the numbers and divide by the amount of numbers there are.

26+19+23+39+31+34+23+25= 220
220/8 = 27.5

your mean is 27.5

hope this helps
Aneli [31]3 years ago
5 0

<u>QUESTION 1</u>

The given data set is;

26,19,23,39,31,34,23,25


The mean can be found using the formula;

\bar X =\frac{\sum x}{n}


\Rightarrow \bar X =\frac{26+19+23+39+31+34+23+25}{8}


\Rightarrow \bar X =\frac{220}{8}



\Rightarrow \bar X =27.5


<u>QUESTION 2</u>

To find the range we may sort the data to obtain;

19,23,23,25,26,31,34,39


We see that the maximum value is 39 and least value is 19


The range is the largest value minus the least value.


This implies that;

Range=39-19


\Rightarrow Range=20

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If R is the midpoint of PS with PR = 7x + 23 and RS= 13x-19 then find PS
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__________________

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<u>PS </u><u>=</u><u> </u><u>1</u><u>4</u><u>4</u><u> </u>

Hope it helps!

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