For the set [4,4,4,6,7,7,9], which value is the mode?

For the set [4,4,4,6,7,7,9], which value is the mode?

• A. 6
• B. 7
• C. 9
• D. 4

Answer: (D)

The mode is the value that appears most often in a data set. In this list, 4 occurs three times, while 7 occurs twice and 6 and 9 occur once each. Because 4 shows up more than any other number, it is the mode. There’s no tie for the highest frequency here, so this mode is unique. (Remember, a data set can have more than one mode if two values tie for the most frequent, or no mode if all values are unique.)

The mode is the value that appears most often in a data set. In this list, 4 occurs three times, while 7 occurs twice and 6 and 9 occur once each. Because 4 shows up more than any other number, it is the mode. There’s no tie for the highest frequency here, so this mode is unique. (Remember, a data set can have more than one mode if two values tie for the most frequent, or no mode if all values are unique.)