Exam 2: Basic Concepts and Measures of Statistical Dispersion

The range of the scores 29, 3, 143, 27, 99 is:

If the observations of a variable X are, -4, -20, -30, -44 and -36, then the value of the range will be:

The scatter in a series of values about the average is called:

In a five number summary, which of the following is not used for data summarization?

The measures of dispersion can never be:

The measures used to calculate the variation present among the observations in the unit of the variable is called:

The measurements of spread or scatter of the individual values around the central point is called:

The measures used to calculate the variation present among the observations relative to their average is called:

The measure of dispersion which uses only two observations is called:

The measure of dispersion which uses only two observations is called:

In the class intervals 40 - 50, 50 - 60, the number 50 is included in which of the following?

Which of the following is an absolute measure of dispersion?

If there are many extreme scores on all examination, the dispersion is:

In statistics out of 100, marks of 21 students in final exams are as 90, 95, 95, 94, 90, 85, 84, 83, 85, 81, 92, 93, 82, 78, 79, 81, 80, 82, 85, 76, 85 then mode of data is

The degree to which numerical data tend to spread about an average value called:

Branches of statistics includes

If all the scores on examination cluster around the mean, the dispersion is said to be:

In quality control of manufactured items, the most common measure of dispersion is:

Given below the four sets of observations. Which set has the minimum variation?

Find the mean of x + 77, x + 7, x + 5, x + 3 and x - 2?