Question

Question text
The following set of scores is obtained on a test, X: 4, 6, 8, 9, 11, 13, 16, 24, 24, 24, 26. The teacher computes all of the descriptive indices of central tendency and variability on these data, then discovers that an error was made, and one of the 24's is actually a 17. Which of the following indices will be changed from the original computation?
Select one:
a. Median
b. Standard deviation
c. All: Median, Mode, Range, and Standard deviation.
d. Mode
e. Range

Answer 1

Answer:

This can be done by measuring the dispersion. Like „measures of central tendency‟ we want to have a single number to describe variability.