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The deviation about the mean of a single number is always zero.

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The mean deviation of any set of numbers is always zero and so the absolute mean deviation is also always zero.

If there is zero deviation all the observations are 50.

What is mean deviation and why is quartile deviation better than mean deviation?

No. The mean deviation is 0. Always.

The mean average deviation is the same as the mean deviation (or the average deviation) and they are, by definition, 0.

None.The mean of a single number is itself.Therefore deviation from the mean = 0Therefore absolute deviation = 0Therefore mean absolute deviation = 0None.The mean of a single number is itself.Therefore deviation from the mean = 0Therefore absolute deviation = 0Therefore mean absolute deviation = 0None.The mean of a single number is itself.Therefore deviation from the mean = 0Therefore absolute deviation = 0Therefore mean absolute deviation = 0None.The mean of a single number is itself.Therefore deviation from the mean = 0Therefore absolute deviation = 0Therefore mean absolute deviation = 0

mean deviation =(4/5)quartile deviation

There is no statistical term such as "deviation mean".

Information is not sufficient to find mean deviation and standard deviation.

You calculate the mean.For each observation, you calculate its deviation from the mean.Convert the deviation to absolute deviation.Calculate the mean of these absolute deviations.

The first set would have most data points very close to 50 while in the second set they would be much further away.

Mean deviation is NEVER used.

The mean deviation from the median is equal to the mean minus the median.

No. The average of the deviations, or mean deviation, will always be zero. The standard deviation is the average squared deviation which is usually non-zero.

.The test has a mean, or average, standard score of 100 and a standard deviation of 16 (subtests have a mean of 50 and a standard deviation of 8). The standard deviation indicates how far above or below the norm the subject's score is.

You don't need to. The mean deviation is, by definition, zero.

There is no single function in Excel.You calculate the mean (average).For each observation, you calculate its deviation from the mean.Convert the deviation to absolute deviation.Calculate the mean (average) of these absolute deviations.

to find percent deviation you divide the average deviation into the mean then multiply by 100% . to get the average deviation you must subtract the mean from a measured value.

Standard deviation is a measure of variation from the mean of a data set. 1 standard deviation from the mean (which is usually + and - from mean) contains 68% of the data.

Standard deviation is the variance from the mean of the data.

Standard deviation can be greater than the mean.

Mean and standard deviation are not related in any way.

The mean absolute deviation of this problem is 6.

No. A small standard deviation with a large mean will yield points further from the mean than a large standard deviation of a small mean. Standard deviation is best thought of as spread or dispersion.

The deviation is 1694.