finding interquartile range from stem-leaf plot 1

Finding: Interquartile Range from Stem-

Leaf Plot 1- Mr Kim

Example on:Finding IQR for odd number of scores

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

1. Find the Median by crossing off the

scores

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

**Make sure the scores are in

Ascending Order first!

Smallest to

Biggest

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

**Make sure the scores are in

Ascending Order first!

Smallest to

Biggest

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Start by crossing off the Smallest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

13

Start by crossing off the Smallest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the Biggest Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the Biggest Number

57

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

15

Now cross off the next Smallest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

51

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest

Number

15

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

46

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

15

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

42

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

18

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

37

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

19

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

34

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

20

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

32

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number21

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number23

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

So the Median (Q2) is 21

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Put 2 lines around it like shown

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now you have to find the Lower and Upper

Quartile by dividing the Stem-Leaf Plot in two

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

**It is very important to divide the sides properly

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

To do this, count the scores from the start

until you reach the Line

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Stop here!

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now put a Border around the scores that

you just counted

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now put a Border around the other side

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

This is how you Correctly divide the

sides

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now find the Median for both sides of the scores by crossing off each side

at a time

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

We will start with the Purple side (it doesn’t

matter which side)

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Start by crossing off the Smallest Number

in the Purple side

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Start by crossing off the Smallest Number

in the Purple side

13

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

Now cross off the Biggest Number in

the Purple side

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

Now cross off the Biggest Number in

the Purple side

21

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

15

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

20

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Smallest Number

15

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now cross off the next Biggest

Number

19

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

1518

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

So the Lower Quartile (Q1) is between 15 and

18 which is 16.5

1518

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

So the Lower Quartile (Q1) is between 15 and

18 which is 16.5

15+182

1518

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Now do the same to the Green side by crossing

off the scores

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Start by crossing off the Smallest Number

in the Green side

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Start by crossing off the Smallest Number

in the Green side

23

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the Biggest Number in

theGreen side

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the Biggest Number in

theGreen side

57

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the next Smallest number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the next Smallest number

32

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the next Biggest number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the next Biggest number

51

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the next Smallest number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the next Smallest number

34

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the next Biggest number

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Now cross off the next Biggest number

46

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

37

42

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

So the Upper Quartile (Q3) is between 37 and 42

which is 39.5

37

42

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

So the Upper Quartile (Q3) is between 37 and 42

which is 39.5

37+422

37

42

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Upper Quartile: 39.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

So, Interquartile Range:

Upper Quartile: 39.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

So, Interquartile Range:

Upper Quartile: 39.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Upper Quartile: 39.5

So, Interquartile Range:39.5 –

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Upper Quartile: 39.5

So, Interquartile Range:39.5 –

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

Upper Quartile: 39.5

So, Interquartile Range:

39.5 – 16.5

Finding IQR from Stem-Leaf Plots (Odd number of scores)

1 3 5 5 5 8 9

2 0 1 1 3

3 2 4 7

4 2 6

5 1 7

Lower Quartile: 16.5

So, Interquartile Range:

39.5 – 16.5 = 23Our Final Answer!

Upper Quartile: 39.5