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Sagot :
Finding the mean, median, mode, and range
We have the following data:
54
70
48
66
59
71
42
58
62
We know that the mean is the average. There are 9 numbers, then we add them and divide the result by 9:
[tex]\begin{gathered} \frac{54+70+48+66+59+71+42+58+62}{9}=\frac{530}{9} \\ \frac{530}{9}\cong58.9 \end{gathered}[/tex]Mean: 58.9
In order to find the median we arrange the numbers in numerical number and we select the number that is on the center of the arrange:
1. 42
2. 48
3. 54
4. 58
5. 59
6. 62
7. 66
8. 70
9. 71
The median is 59
We know that the mode is the most frequent number: in this case we have not a number that occurs ore than the others. Then it doesn't have mode.
Mode: it doesn't have
We find the range by finding the difference between the lowest and the highest numbers: in this case the lowest is 42 and the highest is 71. Then
71 - 42 = 29
Range: 29
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