 • # Mean, Median, Mode, and Range Rap

### MEAN:  also called the AVERAGE

1. All up all the amounts.
2. Divide your total by the number of amounts.
• EX:  Find the mean of  (5, 9, 3, 7, 5)
• Add 5 + 9 + 3 + 7 + 5 = 29
• Divide by the number of numbers, which is 5.  29 ÷ 5 = 5.8
• The mean (or average) is 5.8

### MEDIAN:  MIDDLE NUMBER

1. Order the numbers from least to greatest.
2. Cross off the top number/bottom number until you locate the middle number.
• If the number of values is even, the median is the average of the two middle numbers.
• EX:  Find the median of  12, 6, 3, 9, 15, 8
• Order from least to greatest:
3,  6,  8,  9,  12,  15
• Cross off top/bottom until you get the middle number or the two middle numbers.
• 3,  6,  8,  9,  12,  15
• Add  8 + 9, then divide by 2.
• The median is 8.5

### MODE:  (MOST)

In a set of data, the mode is the number that occurs the most.

1. Order the numbers from least to greatest.
2. Find the number that occurs the most.
• EX:  Find the median of  12, 6, 3, 4, 6, 10
• Order from least to greatest:  3, 4, 6, 6, 10, 12
• The mode is 6 because it occurs two times.

### RANGE:

The range is the difference between the highest and lowest number.

1. Order the numbers from least to greatest.
2. Subtract the lowest number from the highest number.
• EX:  Find the range of:   4, 6, 10, 3, 9, 12, 5, 8
• Order from least to greatest:
3, 4, 5, 6, 8, 9, 10, 12

• 12 - 3 = 9
• The range is 9.