5 Minute Check Find the mean, median and mode of the data sets. Round to the tenth. Complete in your notebook. 1. 2.

5 Minute Check Find the mean, median and mode of the data sets. Round to the tenth. Complete in your notebook. 1.

5 Minute Check Find the mean, median and mode of the data sets. Round to the tenth. Complete in your notebook. 1. Mean = 33.4 Median = 28 Mode = 15 , 25

5 Minute Check Find the mean, median and mode of the data sets. Round to the tenth. Complete in your notebook. 2.

5 Minute Check Find the mean, median and mode of the data sets. Round to the tenth. Complete in your notebook. 2. Mean = 85.7 Median = 85 Mode = 85, 100

Chapter 6.11.1/6.11.2 Mean, Median and Mode Friday, March 20 Chapter 6.11.1/6.11.2 Mean, Median and Mode

Mean, Median and Mode Objective: To find and interpret the mean, median and mode from a data set.

Mean, Median and Mode The mean, median and mode are called measures of center because they describe the center of a data set.

Mean, Median and Mode The mean (or average) of a data set is the sum of the data values divided by the number of pieces of data. It is the balance point of the data set.

Mean, Median and Mode The mean (or average) of a data set is the sum of the data values divided by the number of pieces of data. The median of a data set is the value at the center of an ordered set, or the mean of the two central values.

Mean, Median and Mode The mean (or average) of a data set is the sum of the data value divided by the number of pieces of data. The median of a data set is the value at the center of an ordered set, or the mean of the two central values. The mode is the number or numbers that appears most often in a data set.

Mean, Median and Mode A measure of center can not be larger than the largest data point or smaller than the smallest data point.

Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. To Find the Mean. Step 1 – Add the numbers in the data set.

Step 1 – Add the numbers in the data set. Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. 93+85+88+97+94+90+93=640 To Find the Mean. Step 1 – Add the numbers in the data set.

Step 2 – Divide the sum by how many numbers are in the data set. Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. 93+85+88+97+94+90+93=640 To Find the Mean. Step 2 – Divide the sum by how many numbers are in the data set.

Step 2 – Divide the sum by how many numbers are in the data set. Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. 93+85+88+97+94+90+93=640 640 ÷ 7= 91.4 To Find the Mean. Step 2 – Divide the sum by how many numbers are in the data set.

Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. To Find the Median. Step 1 – Order the data set from least to greatest.

Step 1 – Order the data set from least to greatest. Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. 85, 88, 90, 93, 93, 94, 97 To Find the Median. Step 1 – Order the data set from least to greatest.

Step 2 – Find the middle number or the mean of the two middle numbers. Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. 85, 88, 90, 93, 93, 94, 97 To Find the Median. Step 2 – Find the middle number or the mean of the two middle numbers.

Step 2 – Find the middle number or the mean of the two middle numbers. Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. 85, 88, 90, 93, 93, 94, 97 To Find the Median. Step 2 – Find the middle number or the mean of the two middle numbers.

Find the number, or numbers that occur most often. Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. 85, 88, 90, 93, 93, 94, 97 To Find the Mode. Find the number, or numbers that occur most often.

Mean, Median and Mode Dave recorded his 7 tests scores on the table. Find the mean, median and mode. Round to the tenth, if needed. Mean – 91.4 Median – 93 Mode - 93

Mean, Median and Mode Find the mean, median and mode of the temperatures on the graph. Round to the tenth, if needed. Do this on your own.

Mean, Median and Mode Find the mean, median and mode of the temperatures on the graph. Round to the tenth, if needed. Mean 64.4 + 71.2 + 55.8 + 58.2= 249.6 246.6 ÷ 4 = 62.4

Mean, Median and Mode Find the mean, median and mode of the temperatures on the graph. Round to the tenth, if needed. Median 55.8, 58.2, 64.4, 71.2 58.2 + 64.4 = 122.6 122.6 ÷ 2 =61.3

Mean, Median and Mode Find the mean, median and mode of the temperatures on the graph. Round to the tenth, if needed. Mode Since no numbers occur more than once, there is no mode.

Mean, Median and Mode The dot plot shows the number of beads sold. Find the mean, median and mode. Do this on your own.

Mean, Median and Mode The dot plot shows the number of beads sold. Find the mean, median and mode. Mean = 5+7+7+7+8+8=42÷6=7 Median = 5, 7, 7, 7, 8, 8= 7 Mode = 7

Mean, Median and Mode The dot plot shows the recorded high temperatures for six days in Little Rock, Ark. Find the mean, median and mode temperatures. Do this on your own.

Mean, Median and Mode The dot plot shows the recorded high temperatures for six days in Little Rock, Ark. Find the mean, median and mode temperatures. Mean = 45+45+47+49+50+52=288÷6=48 Median = 45, 45, 47, 49, 50, 53= 48 Mode = 45

Mean, Median and Mode Find the mean, median and mode for the data set. Do this on your own.

Mean, Median and Mode Find the mean, median and mode for the data set. Mean = 8+5+7+12=32÷4=8 Median = 5, 7, 8, 12 = 7.5 Mode = none

Mean, Median and Mode Find the mean, median and mode for the data set. Do this on your own.

Mean, Median and Mode Find the mean, median and mode for the data set. Mean = 8+7+6+8+9+10=48÷6=8 Median = 6, 7, 8, 8, 9,10 = 8 Mode = 8

Mean, Median and Mode Find the mean, median and mode for the data set. Do this on your own.

Mean, Median and Mode Find the mean, median and mode for the data set. Mean = 8+10+15+12+11+8+6=70÷7=10 Median = 6, 8, 8, 10, 11,12, 15 = 10 Mode = 8

Mean, Median and Mode John received an 85%, 86%, 91%, 88% on his math tests. What is the least he must score on the next test to have a mean (average) of at least 90%? Do this on your own.

Mean, Median and Mode John received an 85%, 86%, 91%, 88% on his math tests. What is the least he must score on the next test to have a mean (average) of at least 90%? Mean = 85+86+91+88+ x = 90 · 5 = 450 350 + x = 450 -350 -350 x = 100

Mean, Median and Mode A stem and leaf plot organizes data from least to greatest. The “stem” is the first digit and the “leaf” is the second digit in each number. For example, in the number 32, the “3” would be the “stem” and the “2” would be the “leaf”.

Mean, Median and Mode What is the mean, median and mode of the data in this stem and leaf plot? Do this on your own.

Mean, Median and Mode What is the mean, median and mode of the data in this stem and leaf plot? Mean 78+85+88+89+92+96= 718 718 ÷ 6 = 75

Mean, Median and Mode What is the mean, median and mode of the data in this stem and leaf plot? Mean 78+85+88+89+92+96= 718 528 ÷ 6 = 88

Mean, Median and Mode What is the mean, median and mode of the data in this stem and leaf plot? Median 78, 85,88,89,92,96 88 + 89 = 88.5

Mean, Median and Mode What is the mean, median and mode of the data in this stem and leaf plot? Mode There is no mode.

Mean, Median and Mode Mike raked the leaves from 6 lawns. He earned $12, $10, $13, $15, and $15 for five lawns. How much did he earn the sixth time if the mean of the data is $12? Do this on your own.

Mean, Median and Mode Mike raked the leaves from 6 lawns. He earned $12, $10, $13, $15, and $15 for five lawns. How much did he earn the sixth time if the mean of the data is $12? 12 + 10 + 13 + 15 + 15 + x = 12 · 6 65 + x = 72 -65 -65 x = 7

Mean, Median and Mode Create a data set that has five values where the mean is 34.

Mean, Median and Mode Create a data set that has five values where the mean is 34. Sample answer – 27, 38, 26, 39, 40 Want must sum of the value always be?

Mean, Median and Mode Create a data set that has five values where the mean is 34. Sample answer – 27, 38, 26, 39, 40 Want must sum of the values always be? 34 · 5 = 180

Find the missing number in the data set. Mean, Median and Mode Find the missing number in the data set. (12, 37, 45, 18, 8, 25, 18, x) The mean of a data set 23, the mode is 18 and the median is 19.5

Mean, Median and Mode Find the missing number in the data set. (12, 37, 45, 18, 8, 25, 18, x) If the mean of a data set 23 and there are 8 numbers in the set, then they must add to 23 · 8, or 184. The numbers we know add to 163. 184 – 163 = 21 The missing number must be 21.

Mean, Median and Mode The mean of a data set 45. Find the missing numbers in the data set, (40, 45, 48, x, 54, y, 45)

The mean of a data set 45. Find the missing numbers in the data set, Mean, Median and Mode The mean of a data set 45. Find the missing numbers in the data set, (40, 45, 48, x, 54, y, 45) 40+45+48+x+54+y+45 = 45 · 7 = 315 232 + x + y = 315 -232 -232 x + y = 83 x and y can be any number that add to 83

Mean, Median and Mode One evening at a pizzeria, the following number of toppings were ordered on each large pizza. 3,0,1,1,2,5,4,3,1,0,0,1,1,2,2,3,6,4,3,2,0,2,1,3 True or false. The greatest number of people ordered a pizza with 1 topping.

Mean, Median and Mode One evening at a pizzeria, the following number of toppings were ordered on each large pizza. 3,0,1,1,2,5,4,3,1,0,0,1,1,2,2,3,6,4,3,2,0,2,1,3 True or false. The greatest number of people ordered a pizza with 1 topping. True, the mode is 1

Mean, Median and Mode One evening at a pizzeria, the following number of toppings were ordered on each large pizza. 3,0,1,1,2,5,4,3,1,0,0,1,1,2,2,3,6,4,3,2,0,2,1,3 True or false. Half the customers ordered pizzas with 3 or more toppings, and half ordered pizzas with less than 3 toppings.

Mean, Median and Mode One evening at a pizzeria, the following number of toppings were ordered on each large pizza. 3,0,1,1,2,5,4,3,1,0,0,1,1,2,2,3,6,4,3,2,0,2,1,3 True or false. Half the customers ordered pizzas with 3 or more toppings, and half ordered pizzas with less than 3 toppings. False, the median is 2 0,0,0,0,1,1,1,1,1,1,2,2,2,2,2,3,3,3,3,3,4,4,5,6

Mean, Median and Mode Agenda Notes Homework– Complete the Mid-Chapter check on page 828 Mid-Chapter Quiz –Monday, March 23 Ch 6.9/6.10 test Corrections due Monday