Section 2.7 Mean, Median, and Mode.

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Presentation transcript:

Section 2.7 Mean, Median, and Mode

Vocabulary Mean – the sum of the data divided by the number of pieces of data (average) Median – the middle number of the ordered data, or the mean of the middle two numbers Mode – the number or numbers that occur most often (Most Often Data Explained)

Calories of Selected Vegetables (per serving) NUTRITION The table shows the Calorie content of various vegetables. Find the mean, median, and mode of the data. Calories of Selected Vegetables (per serving) 15 35 50 31 5 25 85 20 55 40 Example 7-1a

COLLEGE The table shows the ages of students in a science class at a local community college. Find the mean, median, and mode of the data. Student Age 20 21 19 35 19 20 19 18 24 19 18 23 Example 7-1c

MULTIPLE-CHOICE TEST ITEM What are the mean, median, and mode of the age survey data 24, 30, 38, 33, 19, and 24, respectively? A 24, 24, 24 B 26, 54, 24 C 27, 28, 24 D 28, 27, 24 Example 7-2a

MULTIPLE-CHOICE TEST ITEM What are the mean, median, and mode of the quiz score data 18, 14, 16, 18, and 19, respectively? A 15, 18, 18 B 17, 18, 18 C 17, 16, 18 D 16, 17, 18 Example 7-2c

Assignment Page 83 #9-12, #15, and #17 #9-12 do not find the Range