Information is not sufficient to find mean deviation and standard deviation.
Chat with our AI personalities
we calculate standard deviation to find the avg of the difference of all values from mean.,
What is mean deviation and why is quartile deviation better than mean deviation?
If this is the only information you have, the answer would be somewhere around 125. Usually, you would find the third quartile by first finding the median. Then find the median of all of the numbers between the median and the largest number, which is the third quartile.
When using the mean: the variance or standard deviation. When using the median: the range or inter-quartile range.
There are many:Range,Inter-quartile range,Percentile rangesMean absolute deviation from the mean or medianVarianceStandard deviationStandardised deviation