Identifying Modes in Data Sets

The video tutorial explains how to determine if a data set has a mode or multiple modes. It begins by defining the concept of a mode, which is a number that appears more frequently than others in a data set. The tutorial then analyzes a specific data set, checking the frequency of each number. It finds that the numbers 9, 11, and 13 each appear twice, making them the modes of the data set. The number 15 appears only once, so it is not a mode. The tutorial concludes by confirming that the data set has more than one mode.

What is the primary question being addressed regarding the data set?

• Whether the data set has a mean.

• Whether the data set has a mode or multiple modes.

• Whether the data set has a median.

• Whether the data set is sorted.

How many times does the number 9 appear in the data set?

• Once

• Four times

• Twice

• Three times

Which number appears only once in the data set?

• 11

• 15

• 9

• 13

Which numbers are identified as modes in the data set?

• 11, 13, and 15

• 9, 11, and 15

• 9, 13, and 15

• 9, 11, and 13

Why are numbers 9, 11, and 13 considered modes?

• They do not appear in the data set.

• They appear the same number of times as 15.

• They appear more frequently than 15.

• They appear less frequently than 15.