 Advantages and Disadvantages of ModeIt is easy to understand and simple to calculate.It is not affected by extremely large or small values.It can be located just by inspection in ungrouped data and discrete frequency distribution.It can be useful for qualitative data.It can be computed in an open-end frequency table.It can be located graphically..

Disadvantages can help propel you to see your situation from different perspectives and find approaches to succeed that you might not otherwise have found. Advantages can blind you from the necessity to keep searching for better ways to pursue success.

## What are the uses of range?

Given that the range can easily be computed with information on the maximum and minimum value of the data set, users requiring only a rough indication of the data may prefer to use this indicator over more sophisticated measures of spread, like the standard deviation.

## What does the range represent?

The Range is the difference between the lowest and highest values. Example: In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9. So the range is 9 − 3 = 6. It is that simple!

## Why should I use standard deviation?

The standard deviation is used in conjunction with the mean to summarise continuous data, not categorical data. In addition, the standard deviation, like the mean, is normally only appropriate when the continuous data is not significantly skewed or has outliers.

## What is the disadvantage of essay?

Some disadvantages of essay exams include the amount of time they take to grade and their inherent subjectivity. Teachers can increase their grading objectivity by covering students’ names, deciding in advance the key points each essay should cover, and stopping the grading when they begin to feel tired.

## What if there are 2 modes?

If there are two numbers that appear most often (and the same number of times) then the data has two modes. This is called bimodal. If there are more than 2 then the data would be called multimodal. If all the numbers appear the same number of times, then the data set has no modes.

## Why is the range important?

An important use of statistics is to measure variability or the spread ofdata. … The range, another measure ofspread, is simply the difference between the largest and smallest data values. The range is the simplest measure of variability to compute. The standard deviation can be an effective tool for teachers.

## What does the range show you?

The range can only tell you basic details about the spread of a set of data. By giving the difference between the lowest and highest scores of a set of data it gives a rough idea of how widely spread out the most extreme observations are, but gives no information as to where any of the other data points lie.

## What is the benefit of standard deviation?

Standard deviation has its own advantages over any other measure of spread. The square of small numbers is smaller (Contraction effect) and large numbers larger (Expanding effect). So it makes you ignore small deviations and see the larger one clearly! The square is a nice function!

## Why is standard deviation preferred?

Standard deviation is amenable for further mathematical treatment unlike the mean deviation. Hence in general, standard deviation is preferred over the mean deviation. May be for the same reason, standard deviation is preferred over the mean deviation in the manufacturing and service industries.

## What is the best measure of variation?

Most of the data values are on the right clustered around 9, and the tail extends to the left. The distribution is skewed left. So, the median and the interquartile range are the most appropriate measures to describe the center and the variation.

## What are the disadvantages of range?

The disadvantage of using range is that it does not measure the spread of the majority of values in a data set—it only measures the spread between highest and lowest values. As a result, other measures are required in order to give a better picture of the data spread.

Standard deviation can be used for mathematical operations and algebraic treatments….AnswerRigidly Defined: – Standard deviation is rigidly defined measure and its value is always fixed.Best Measure: – Standard deviation is based on all the items in the series. … Less Affected: – … Suitable For Algebraic Operation: –