Question

the responses of a sample of 524 shoppers who were asked how their purchases are made are shown in the table. find the mean, the median, and the mode of the data, if possible. if any measure cannot be found or does not represent the center of the data, explain why. find the mean. select the correct choice below and, if necessary, fill in the answer box to complete your choice. a. the mean is (round to one decimal place as needed.) b. the mean cannot be calculated because there is an even number of data entries. c. the mean cannot be calculated because the data are at the nominal level of measurement. d. the mean cannot be calculated because the sample size is too small.

Explanation:

Step1: Identify data type

The data about how purchases are made (research online and in - store, buy in - store; search and buy online; search and buy in - store; research online and in - store, buy online) is categorical data at the nominal level of measurement.

Step2: Recall mean calculation requirements

The mean is calculated for numerical data. Nominal data has no numerical values for which arithmetic operations like addition and division (required for mean calculation) are meaningful.

Answer:

C. The mean cannot be calculated because the data are at the nominal level of measurement.