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

Q: If quartile deviation is 24. find mean deviation and standard deviation?

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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

Related questions

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?

mean deviation =(4/5)quartile deviation

yes

It is not possible to answer without any information on the spread (range, inter-quartile range, mean absolute deviation, standard deviation or variance).

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.

Standard error, standard deviation, variance, range, inter-quartile range as well as measures based on other percentiles.

When using the mean: the variance or standard deviation. When using the median: the range or inter-quartile range.

It is mean + 2*standard deviation.

There is no such thing. Maybe your professor meant , Standard Deviation, The Mean. (2 different things.)

Inter-quartile range, other percentile ranges, mean absolute variation, variance, standard error, standard deviation are all possible measures.

A standard deviation calculator allows the user to find the mean spread away from the mean in a statistical environment. Most users needing to find the standard deviation are in the statistics field. Usually, the data set will be given and must be typed into the calculator. The standard deviation calculator will then give the standard deviation of the data. In order to find the variance of the data, simply square the answer.