finding interquartile range from stem-leaf plot 1
TRANSCRIPT
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