Why is range a measure of poor dispersion?

Why is range a measure of poor dispersion?

Answer: The RANGE is a bad measure of dispersion because it is affected by outliers.It only uses the two extreme values in a dataset. By using the two extreme values in a dataset, it is quite wasteful of resources because all the values in between the maximum and minimu are neglected.

Which of the following is not a measure of dispersion?

Absolute measures include Range, quartile deviation, mean deviation, and standard deviation. Relative measures include coefficients of range, quartile deviation, variation, and mean deviation. Hence, Quartile is not the measure of dispersion.

What is a disadvantage of using arithmetic mean?

The arithmetic mean is highly affected by extreme values. It cannot average the ratios and percentages properly. It is not an appropriate average for highly skewed distributions. It cannot be computed accurately if any item is missing.

Which measure of central location are not affected?

The mode and median are not affected by extremely small or large values as mode is the most frequent value in the distribution and the extreme…

What is the main disadvantage of standard deviation?

Disadvantages of Standard Deviation : (1) Difficult : Standard Deviation is difficult to calculate or understand. (2) More importance to Extreme Value : In the calculation of standard deviation extreme values get greater importance.

What are the disadvantages of using standard deviation?

The biggest drawback of using standard deviation is that it can be impacted by outliers and extreme values. Standard deviation assumes a normal distribution and calculates all uncertainty as risk, even when it’s in the investor’s favor—such as above-average returns.

What is the main disadvantages of the standard deviation?

As all things have both pros and cons, Standard deviation too has its disadvantages, some of its disadvantages are: It does not provide you with a complete range of data. It is only used with data where an independent variable is plotted against the frequency of that variable.

Is range a measure of dispersion?

Range, interquartile range, and standard deviation are the three commonly used measures of dispersion.

Which is an advantage of a measure of dispersion?

The range is the difference between the largest and the smallest observation in the data. The prime advantage of this measure of dispersion is that it is easy to calculate. On the other hand, it has lot of disadvantages. It is very sensitive to outliers and does not use all the observations in a data set.[1]

What are the disadvantages of using a range?

Range is highly affected by sampling fluctuations. 3. Range cannot be determined in case of open end class distribution. 4. It is not suitable for further algebraic treatments and other mathematical calculations. Email This BlogThis! Share to Twitter Share to Facebook

What are the advantages of a rigidly defined range?

1 Rigidly Defined Range is rigidly defined measure of dispersion. So, it value is always fixed. 2 Simple And Easy Method It does not require special mathematical knowledge to compute range. 3 Usefulness

What are the advantages and disadvantages of SD?

The other advantage of SD is that along with mean it can be used to detect skewness. The disadvantage of SD is that it is an inappropriate measure of dispersion for skewed data. APPROPRIATE USE OF MEASURES OF DISPERSION