PowerPoint

1. Making a Frequency Chart
Using as an Illustration 100 Digits from the
RAND One Million Random Digits
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2. First Collect Some Data
Pick
100 Random Digits
3106010805455718240635303
4261486799074392340309732
8526977602020516569268665
7481873053852471862388579
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3. Excel Worksheet
3 1 0 6 0 1 0 8 0 5
4 5 5 7 1 8 2 4 0 6
3 5 3 0 3 4 2 6 1 4
8 6 7 9 9 0 7 4 3 9
2 3 4 0 3 0 9 7 3 2
8 5 2 6 9 7 7 6 0 2
0 2 0 5 1 6 5 6 9 2
6 8 6 6 5 7 4 8 1 8
7 3 0 5 3 8 5 2 4 7
1 8 6 2 3 8 8 5 7 9
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4. Count the 10 Different Digits
Frequency
Digit
(Count)
0 13
1 7
2 10
3 11
4 8
5 11
6 12
7 10
8 11
9 7
Total 100
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5. Add Relative Frequency Column
Frequency Relative
Digit
(Count) Frequency
0 13
1 7
2 10
3 11
4 8
5 11
6 12
7 10
8 11
9 7
Total 100
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6. Compute Relative Frequency
Frequency Relative
Digit
(Count) Frequency
0 13 0.13
1 7 0.07
2 10 0.10
3 11 0.11
4 8 0.08
5 11 0.11
6 12 0.12
7 10 0.10
8 11 0.11
9 7 0.07
Total 100 1.00
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7. Express Relative Frequency as Percent
Frequency Relative Relative
Digit
(Count) Frequency Frequency (%)
0 13 0.13 13%
1 7 0.07 7%
2 10 0.10 10%
3 11 0.11 11%
4 8 0.08 8%
5 11 0.11 11%
6 12 0.12 12%
7 10 0.10 10%
8 11 0.11 11%
9 7 0.07 7%
Total 100 1.00 100%
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