Topic MEAN WALT calculate mean for a set

Topic: MEAN WALT: calculate mean for a set of data • Calculate the mean for a set of discrete data • Calculate the mean for any data set • Use mean to find the missing data in a data set MUS Sum VIDDIE Divide LOTAT Total

What is the Mean?

The Mean The mean is the most commonly used average. To calculate the mean of a set of values we add together the values and divide by the total number of values. Sum of values Mean = Number of values Find the mean of 1, 2, 2, 2 and 3. 1+2+2+2+3 5 = 10 5 = 2

Mini Plenary Below are the number of chocolates Mrs Jones ate each day last week. Find the mean and range of the set of numbers below. 2, 3, 3, 4, 5, 6, 7, 10 Range: 10 -2 = 8 Mean: 40 ÷ 8 = 5

Work out which Avenger has the best average in each category. Strength Cunning Speed Trickery Intellect The Hulk 10 3 5 3 7 Iron Man 8. 5 8 10 9 10 Captain America 9. 5 5 6 Thor 9. 5 6 9 8 5 Black Widow 8 10 7 9. 5 Hawkeye 6 3 7 8. 5 6

Calculate: MEAN 4 7 5 8 6

Calculate: 12 MEAN 11 5 10 12

Calculate: MEAN 10 5 14 8 3

Calculate: 4 MEAN -6 7 2 3

Calculate: 12 MEAN 13 5 7 -2

Calculate: 10 MEAN 12 26 14 8

Final Challenge! Find the mean of the following sets of data: Find the mean of this set of data 1. 2. 3. 4. 5. 6. 7. 1. 2. 3. 4. 5. 1) 0. 7, 0. 4, 0. 6, 0. 7, 0. 9, 1. 1, 1. 2, 1. 4 2, 3, 3, 4 3, 5, 7, 9, 11 3, 5, 6, 7, 7, 8 10, 15, 20, 25, 30 8, 12, 5, 5, 5 100, 200, 400, 100 4, 6, 7, 9, 11, 12, 14 1. 7, 3. 4, 2. 3, 2. 6 2. 1, 6. 2, 7. 3, 9. 9, 12 2. 3, 1. 5, 6. 2, 4. 7, 5. 8 8. 2, 7. 5, 2. 7, 5. 6 2. 25, 5. 3, 7. 75, 9. 7, 3. 4, 6. 9 2) 23, 46, 79, 80, 73, 70, 83, 78, 23, 45

Final Challenge! Find the mean of the following sets of data: 1. 2. 3. 4. 5. 6. 7. Find the mean of the following sets of data: 2, 3, 3, 4 3 1. 3, 5, 7, 9, 11 7 2. 3, 5, 6, 7, 7, 8 6 3. 10, 15, 20, 25, 30 20 4. 8, 12, 5, 5, 5 7 5. 100, 200, 400, 100 200 4, 6, 7, 9, 11, 12, 14 9 1. 7, 3. 4, 2. 3, 2. 6 2. 5 2. 1, 6. 2, 7. 3, 9. 9, 12 7. 5 2. 3, 1. 5, 6. 2, 4. 7, 5. 8 4. 1 8. 2, 7. 5, 2. 7, 5. 6 6 2. 25, 5. 3, 7. 75, 9. 7, 3. 4, 6. 9 5 Find the mean of this set of data 1) 0. 7, 0. 4, 0. 6, 0. 7, 0. 9, 1. 1, 1. 2, 1. 4 0. 875 2) 23, 46, 79, 80, 73, 70, 83, 78, 23, 45 60

Give four numbers with a mean of 5.

Give three numbers with a mean of 8 and mode of 7

Give five numbers with a mean of 3 and a range of 5.

Give 5 numbers with a mean of 4 and median of 5.

Find the Missing Value

1. 4 numbers with Mean = 5 2. 6 numbers with Mode = 2 3. 5 numbers with Median = 7 4. 5 numbers with Mean = 3 and Mode = 4 5. 6 numbers with Mean = 5 and Range = 4 6. 5 numbers with Median = 5 and Mode = 2 7. 5 numbers with Mean = 7 and Median = 5 8. 4 numbers with Median = 9 9. 6 numbers with Range = 8 and Median 10 10. 11. 12. 4 numbers with Mean = 4, Median = 3. 5 , Range = 5 6 numbers with Mode = 3, Median = 3. 5 and Range = 7 4 numbers with Mean = 8 & Median = 6