In the data set 4, 5, 6, 9, 9, 9, which value appears most often?

In the data set 4, 5, 6, 9, 9, 9, which value appears most often?

• A. 4
• B. 5
• C. 6
• D. 9

Answer: (D)

Finding the most frequent value, or the mode, is what this question asks. The mode is the data value that occurs with the greatest frequency. In this set, 4 appears once, 5 appears once, 6 appears once, and 9 appears three times. Because 9 shows up more often than any other number, it is the mode. The other numbers each occur only once, so they aren’t the most common. There is a single mode here, not a tie.

Finding the most frequent value, or the mode, is what this question asks. The mode is the data value that occurs with the greatest frequency. In this set, 4 appears once, 5 appears once, 6 appears once, and 9 appears three times. Because 9 shows up more often than any other number, it is the mode. The other numbers each occur only once, so they aren’t the most common. There is a single mode here, not a tie.