Concept explainers
To find mean median mode, range and standard deviation.
Answer to Problem 10PPS
Mean=84.2
Median=85.5
Mode=no mode
Range=21
Standard deviation=6.77
Explanation of Solution
Given information:
72,56,71,63,68,59,77,74,76,66
Constant=0.5
Formula used:
Mean=
Where, n=total number of terms,
Mode= most repeating numbers.
Median=
Range= maximum- minimum
Standard deviation,
Where
Calculation:
After adding constant,
New data is 88,72,87,79,84,75,93,90,92,82
Substituting the value,
Mean=
Sort the number in ascending order,
72,75,79,82,84,87,88,90,92,93
Median=
Mode= no mode.
Range=
For standard deviation,
values | Difference= | ( |
72 | 3.8 | 14.44 |
75 | -12.2 | 148.84 |
79 | 2.8 | 7.84 |
82 | -5.2 | 27.04 |
84 | 0.2 | 0.04 |
87 | -9.2 | 84.64 |
88 | 8.8 | 77.44 |
90 | 5.8 | 33.64 |
92 | 7.8 | 60.84 |
93 | -2.2 | 4.84 |
Chapter 10 Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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