Which of the following measures of central tendency could be computed on avariable that is measured on a nominal scale of measurement?a. mean b. median c. mode d. none of the above

The correct answer is c. mode.

Here's why:

a. Mean: This is not applicable to nominal data because it requires numerical input. Nominal data is categorical and does not have a numerical value or order.

b. Median: This is also not applicable to nominal data because it requires data that is ordinal, interval, or ratio. Nominal data does not have a specific order, so a middle value (median) cannot be determined.

c. Mode: This is the only measure of central tendency that can be used with nominal data. The mode is simply the most frequently occurring value in a data set, which does not require numerical values or any specific order.

d. None of the above: This is incorrect because, as explained, the mode can be computed on a variable that is measured on a nominal scale of measurement.