Measures Of Dispersion — Practice Quiz
Telangana Open School (TOSS) · Class 12 · Mathematics
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Quick Quiz: Measures Of Dispersion
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What is the range of the data set: 5, 10, 15, 20, 25?
Which measure of dispersion considers all observations?
If the mean of a data set is 50 and one observation is 60, what is its deviation from the mean?
Which of the following is NOT a measure of dispersion?
Sample Questions
The sum of deviations from the mean is always:
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True
The sum of deviations from the mean is always zero for any data set.
For the data: 2, 4, 6, 8, 10, what is the range?
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8
Range = Maximum - Minimum = 10 - 2 = 8.
Mean deviation is always:
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Positive
Mean deviation uses absolute values of deviations, so it is always non-negative and positive if data varies.
The variance is the square of:
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Standard Deviation
Standard deviation is the positive square root of variance, so variance is its square.
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