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Lesson 6 2 range, mean, median, mode

The document is a worksheet about calculating range, mean, median, and mode from sets of numerical data. It contains definitions of these statistical terms and examples to demonstrate their meaning. Students are asked to calculate these values for several data sets and solve word problems requiring the use of these concepts.

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Name ___________________________________ Date __________________ Mrs. Labuski / Mrs. Rooney Period __________ Lesson 6-2 Range, Mean, Median, Mode VOCABULARY DEFINITION EXAMPLE The difference between 2,5,3,6,9,8 RANGE the least and greatest 9–2=7 values in the set of Range = 7 numbers. 2,4,3,6 The sum of all the items, MEAN divided by the number 2 + 4 + 3 + 6 = 15 of items in the set. Also 15 ÷ 4 = 3.75 called the average. Mean = 3.75 2,4,3,6,8,5 2,3,4,5,6,8 The middle value when 4+5=9 the data are in 9÷2=4.5 numerical order. If 4.5 = median MEDIAN there are two numbers 2,4,3,6,8,5,7 in the middle, find the 2,3,4,5,6,7,8 mean (average) of those 5 = median two numbers. The value or values that 4,5,3,4,3,2,4,6 MODE occurs most often in a 4 = mode set of data.
1. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____ 2. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____ 3. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____
4. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____ 5. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____ 6. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____
7. Tammy is 14 years old. She has a younger sister and an older brother. Her sister is 12 years old. The mean of all their ages is 14. How old is Tammy’s brother? 16 years old 8. The mode of Nevin’s four math quiz scores last month is 85 points. On three of the quizzes, he earned the following scores: 90, 86, and 85. What was the score of Nevin’s other quiz? 85 points
Name ___________________________________ Date __________________ Mrs. Labuski / Mrs. Rooney Period __________ Lesson 6-2 Range, Mean, Median, Mode VOCABULARY DEFINITION EXAMPLE 2,5,3,6,9,8 RANGE 2,4,3,6 MEAN 2,4,3,6,8,5 MEDIAN 2,4,3,6,8,5,7 4,5,3,4,3,2,4,6 MODE
1. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____ 2. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____ 3. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____
4. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____ 5. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____ 6. Find each and show all work below. Range: _____ Mean: _____ Median: _____ Mode: _____
7. Tammy is 14 years old. She has a younger sister and an older brother. Her sister is 12 years old. The mean of all their ages is 14. How old is Tammy’s brother? 8. The mode of Nevin’s four math quiz scores last month is 85 points. On three of the quizzes, he earned the following scores: 90, 86, and 85. What was the score of Nevin’s other quiz?