Mean
Median
Mode & MAD
Histograms & Dot Plots
Quartiles, IQR, & Range
100

What is the mean of: 2,2,2,5,5,5,8,8,8

5

100
What is the median of: 1,2,3,4,5,6,7,8,9,10,11
6
100

Find the MAD:2,4,6,6,8,10

2

100

Create a Dot Plot of the data: 1,5,3,4,2,5,2,3,5,1,6,2,5,3

                               .       

        .      .               .       

.       .      .               .       

.       .      .       .       .      .

|-----|-----|-----|-----|-----|

1      2      3      4      5      6

100

What is the IQR of: 6,2,7,4,5,1,3

4

200

What is the mean of: 2,2,1,1,2,6,0,1,0,1,2,0

1.5

200
What is the median of: 3,5,7,9,11,3,8
7
200

Find the MAD: 1,2,3,4,4,4,4,5,6,7

1.2

200

Create a dot plot of: 5,9,10,5,8,8,5,9,10,10,7,7,8,6,9,10,5

.                                     .

.                      .       .      .

.              .       .       .      .

.       .      .       .       .      .

|-----|-----|-----|-----|-----|

5      6      7      8      9     10

200

What is the 3rd Quartile of: 65,96,89,91,94,89,67

94

300

What is the mean of: 2,1,2,4,2,3,3,2,5,2,1,3

2.5

300
What is the median of: 14,19,16,13,16,14
15
300

What is the mode of: 234,666,124,987,456,666,532

666

300

Below are numbers of pets that students have. Use the data to create a histogram:

Numbers of Pets : Frequency

1-5 : 4

6-10 : 3

11-15 : 6

16-20 : 2

See Board

300

What is the IQR of: 45,78,89,12,67,56,23,90,34

55

400
What is the mean of: Ages in class: 11,12,12,12,12,12,13
12
400

What is the median of: 44,13,40,52,27,31

35.5

400

What is the mode: 12345,87654,8765,234,7654,234,8765

234 & 8765

400

                                      .

                       .              .

.              .       .       .      .

.       .      .       .       .      .

|-----|-----|-----|-----|-----|

6      9     12    14    17    19

Find the Mean, Median, Mode, Range, and IQR of the Dot Plot

Mean: 14.07 or 14 1/14

Median: 14

Mode: 19

Range: 13

IQR: 19-12 = 7

400

What is the Range, Q1, & Q3 of: 666,64,49,981,55,678,50

Range: 932

Q1: 50

Q3: 678

500

What is the mean of: 1,1,2,3,3,6,8,9,12,15

6

500
What is the median of: 17.2,12.4,13.5,13.4,13.87,12.47
13.45
500

Find the Mode & MAD: 18,23,25,28,31,31

Mode: 31

MAD: 4

500

Based on the Histogram... Which number of defects per Hour are approximately the same, and what is their frequency?

4 Defects per hour

7 Defects per hour

Frequency: 7

500

What is the Range and IQR of: 2.34,3.41,5.32,6.45,8.43,9.086,11.9

Range: 9.56

IQR: 5.676