Answer to Question #107609 in Statistics and Probability for Yusuf

Question #107609

Age at diagnosis in months
18.5
22
20
30.5
25

Question 15 Which one of the following descriptive statistics is not a measure of central tendency or location? (1) Mean. (2) Median. (3) Mode. (4) Range. (5) All the above measures describe central tendency or location.
Question 16 Which one of the following statements is correct with regard to the coefficient of variation? (1) It is a measure of location. (2) It is the difference between the largest and smallest value in a dataset. (3) It is the sample standard deviation squared (4) It is the sample standard deviation expressed as a percentage of the mean. (5) It is the mean squared.

Expert's answer

Question 15

(4) Range

Range is not a measure of central tendency or location.

Question 16

(4) It is the sample standard deviation expressed as a percentage of the mean

Coefficient of Variation is the ratio of standard deviation to the mean expressed as a percentage.