Score freq
0 4
1 3
2 7
3 3
4 12
Here’s our grid to fill in the values
Score freq
0 4
1 3
2 7
3 3
4 12 x
All the Scores go on the Horizontal axis
Score freq
0 4
1 3
2 7
3 3
4 12 1 2 3 40 x
fAll the Frequencyvalues go on the
Vertical axis
Score freq
0 4
1 3
2 7
3 3
4 12 1 2 3 40
0
x
f
Start from 0 and go up by 2 units until you reach …
Score freq
0 4
1 3
2 7
3 3
4 12 1 2 3 40
0
x
f
Start from 0 and go up by 2 units until you reach 12
Score freq
0 4
1 3
2 7
3 3
4 12
Now start plotting the Histogram
1 2 3 40
0
2
4
6
8
10
12
x
f
Score freq
0 4
1 3
2 7
3 3
4 12
There must be half unit gap
1 2 3 40
0
2
4
6
8
10
12
x
f
Score freq
0 4
1 3
2 7
3 3
4 12
That’s Histogram complete. Let’s start the Polygon now
1 2 3 40
0
2
4
6
8
10
12
x
f
Score freq
0 4
1 3
2 7
3 3
4 12 1 2 3 40
0
2
4
6
8
10
12
x
f
Start by plotting a dot in the corner
Score freq
0 4
1 3
2 7
3 3
4 12 1 2 3 40
0
2
4
6
8
10
12
x
f
The dots are placed in the middle of each histogram
Score freq
0 4
1 3
2 7
3 3
4 12 1 2 3 40
0
2
4
6
8
10
12
x
f
Place the last dot at the bottom of the next unit
Score freq
0 4
1 3
2 7
3 3
4 12
Now, join them up using straight lines
1 2 3 40
0
2
4
6
8
10
12
x
f
Score freq
0 4
1 3
2 7
3 3
4 12 1 2 3 40
0
2
4
6
8
10
12
x
f
And this is how you draw a Frequency Histogram Polygon!