For the series of the following observations, the coefficient of range leads to which of the following conclusions? FIRST: 2, 2, 3, 3, 4, 5, 5, 6, 7
SECOND: 2, 3, 4, 6, 8, 9, 10, 14, 16, 18
THIRD: 1, 3, 4, 4, 5, 7, 8, 8, 9, 10, 12, 12
Third series has greatest dispersion
The coefficient of range is a measure of the dispersion in a data series, calculated as (Max - Min) / (Max + Min). By comparing the coefficient of range for all three series, we conclude that the third series has the greatest dispersion.
Similar Questions
For a group of 50 male workers, the mean and the standard deviation of their daily wages are ₹63 and ₹9, respectively. For a group of 40 female workers, these values are ₹54 and ₹6, respectively. What is the standard deviation of the combined group of these 90 workers?
In case of a certain distribution, the following results were obtained.
Mean = 45, median = 48 and coefficient of skewness = -0.4. What is the standard deviation of the distribution?The nutritional data about a sample of seven breakfast cereals gives the number of calories per serving as follows. The quartile deviation is equal to:
100, 80, 100, 130, 110, 200, 190
Let 8 be the variance of a data set. If each observation is multiplied by a constant 2 and a constant 3 is added to each observation, then the variance of the new data set is:
Which of the following is the relative measure of dispersion?
If the mean deviation of X from mean is m, then the mean deviation of Y = aX + b is:
Which of the following holds for mean squared deviation (MSD)?
For a set of observations, the mean is 8 and standard deviation is 3, then the coefficient of dispersion is equal to:
Which of the following is NOT true?
What does the third moment measure?
Important Questions from Measures of dispersion
For a group of 50 male workers, the mean and the standard deviation of their daily wages are ₹63 and ₹9, respectively. For a group of 40 female workers, these values are ₹54 and ₹6, respectively. What is the standard deviation of the combined group of these 90 workers?
In case of a certain distribution, the following results were obtained.
Mean = 45, median = 48 and coefficient of skewness = -0.4. What is the standard deviation of the distribution?The nutritional data about a sample of seven breakfast cereals gives the number of calories per serving as follows. The quartile deviation is equal to:
100, 80, 100, 130, 110, 200, 190
Let 8 be the variance of a data set. If each observation is multiplied by a constant 2 and a constant 3 is added to each observation, then the variance of the new data set is:
Which of the following is the relative measure of dispersion?
