Measures of Dispersion Quiz

What is the most simple measure of variability?

• range

• inter-quartile range

• variance

• standard deviation

What measure of variation is the square root of the variance?

• range

• inter-quartile range

• inter-quartile deviation

• standard deviation

Which measure of central tendency is needed to solve the variance of a distribution?

• mean

• median

• mode

• range

Which among the following is NOT true about the measures of variation?

• It is also known as measures of spread

• The higher the variability the higher the spread of scores

• The lower the variability the lesser the spread of scores

• It does not tell us that the scores are compressed or spread out

Given the following scores, 15, 12, 2, 3, 5, 11, 23, 24, 45, 32, 33: What is the range?

• 40

• 43

• 45

• 47

What does a distribution with a high value of standard deviation imply?

• The scores are closer to the mean

• The scores are homogenous

• The scores are heterogenous

• The scores are closer together

If the variance of a distribution is 169, then what is the standard deviation of the same distribution?

• 11

• 12

• 13

• 14

If the standard deviation of a data set is 17, then what is the standard deviation of the same data set?

• 196

• 239

• 289

• 327

Which measure of variation is calculated using measures of position values?

• range

• inter-quartile range

• variance

• standard deviation

The average scores in the test of section A is 36. Section B also gained the same average scores in the same test. However, section A has a standard deviation of 4 while section B has a standard deviation of 1.8. In which section are the scores less dispersed?

• Section A

• Section B

• Could not be determined

• No enough information