15. Suppose that Column B contains 100 observations of a string variable. Which of the following is therefore true? a. The command =AVERAGE(B2:B101)/100 will return the average value of this variable. b. The "COUNTIF" command cannot be applied to the data in this column. c. The "MODE" command can be applied to the data in this column. d. The "MEDIAN" command cannot be applied to the data in this column.

15. Suppose that Column B contains 100 observations of a string variable. Which of the following is therefore true? a. The command =AVERAGE(B2:B101)/100 will return the average value of this variable. b. The "COUNTIF" command cannot be applied to the data in this column. c. The "MODE" command can be applied to the data in this column. d. The "MEDIAN" command cannot be applied to the data in this column.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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