Quiz & Worksheet - Measures of Variability

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Range, standard deviation, and variance are 'similar' in that each looks at

the difference between high and low scores. how spread out the data is. the collection to be sampled.

the numerical value that occurs most often. the central score.

Worksheet

Print Measures of Variability Formulas | Range, Variance & SD Worksheet

1. Professor Dublin has just given a biology exam and wants to calculate the 'range' of performance of his students. What must he do?

Identify the central score.
Find the score that occurs most often.
Identify how far from average each score is.
Subtract the lowest score from the highest score.
Plot scores on a bell curve.

2. Professor Dublin wants to ensure he is thorough in his review of student performance, so he decides to calculate 'standard deviation' as well. What must Professor Dublin do to figure out this measure of variability?

Identify the central score.
Find the score that occurs most often.
Identify how far from average each score is.
Subtract the lowest score from the highest score.
Plot scores on a bell curve.

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About This Quiz & Worksheet

Measures of variability are important to be familiar with when conducting research, and this quiz/worksheet will test your understanding of their components and significance.

Quiz & Worksheet Goals

In these assessments you'll be tested on the components and implications of:

Range
Standard deviation
Variance

Skills Practiced

This quiz and worksheet allow students to test the following skills:

Reading comprehension - ensure that you draw the most important information from the lesson regarding the significance of measures of variability
Making connections - use understanding of measures of variability to recognize the related significance of range, standard deviation, and variance
Information recall - access the knowledge you've gained regarding what variance attempts to estimate as well as the effects of not square rooting of the standard deviation and the implications of a small range

Additional Learning

To learn more, review the accompanying lesson Measures of Variability: Range, Variance & Standard Deviation. This lesson covers the following objectives: