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Relative Frequency. How to calculate relative frequency. Noemi Navas Arranz. 1. First of all, count the number of times that each piece of data is repeated. IIII. IIII. IIII. IIII. This is the absolute frequency. IIII. IIII. IIII. IIII. 2. Next, count the total number of events. - PowerPoint PPT Presentation
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Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça IIII IIII IIII
Real Madrid IIII II
Espanyol III
Total number of events
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça
Real Madrid II
Espanyol III
Total number of events
IIII
IIII
IIII
IIII
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça 15
Real Madrid 7
Espanyol III 3
Total number of events
IIII
IIII
IIII
IIII
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça 15
Real Madrid 7
Espanyol III 3
Total number of events
IIII
IIII
IIII
II
IIII
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça 15
Real Madrid 7
Espanyol III 3
Total number of events
25
IIII
IIII
IIII
II
IIII
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça 15
Real Madrid 7
Espanyol III 3
Total number of events
25
Numerator
1525 Denominat
orIIII
IIII
IIII
II
IIII
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça15
1525
Real Madrid7
725
Espanyol III3
325
Total number of events
25
IIII
IIII
IIII
II
IIII
15:25=
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça15
1525
Real Madrid7
725
Espanyol III3
325
Total number of events
25
IIII
IIII
IIII
II
IIII
15:25=0,60
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça15
1525
Real Madrid7
725
Espanyol III3
325
Total number of events
25
IIII
IIII
IIII
II
IIII
Football Team
Tally marks
Absolute Frequency
Relative Frequency
Barça15
1525
=0,60
Real Madrid7
725
=0,28
Espanyol III3
325
=0,12
Total number of events
25
IIII
IIII
IIII
II
IIII
0,60 + 0,28 + 0,12 =
1
Because the sum of all the relative frequencies is the unit.
0,60 0,28
+ 0,121,00
0.60 0.28
+ 0.121.00
0,60 0,28
+ 0,121,00
0.60 0.28
+ 0.121.00
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza
Vegetables
Fruit
Meat III
Pasta
Total number of events
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza
Vegetables
Fruit
Meat III
Pasta
Total number of events
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza
Vegetables
Fruit
Meat III
Pasta
Total number of events
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 12
Vegetables 7
Fruit 8
Meat III 3
Pasta 10
Total number of events
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 12
Vegetables 7
Fruit 8
Meat III 3
Pasta 10
Total number of events
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 12
Vegetables 7
Fruit 8
Meat III 3
Pasta 10
Total number of events
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 12
Vegetables 7
Fruit 8
Meat III 3
Pasta 10
Total number of events
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
40
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 12
Vegetables 7
Fruit 8
Meat III 3
Pasta 10
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 12
Vegetables 7
Fruit 8
Meat III 3
Pasta 10
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 12
Vegetables 7
Fruit 8
Meat III 3
Pasta 10
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Numerator
1240 Denominat
or
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 121240
Vegetables 7740
Fruit 8840
MeatIII
3340
Pasta 101040
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 121240
Vegetables 7740
Fruit 8840
MeatIII
3340
Pasta 101040
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 121240
Vegetables 7740
Fruit 8840
MeatIII
3340
Pasta 101040
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 121240
Vegetables 7740
Fruit 8840
MeatIII
3340
Pasta 101040
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
a calculator.a calculator.
12:40=
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 121240
Vegetables 7740
Fruit 8840
MeatIII
3340
Pasta 101040
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
12:40=
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 121240
Vegetables 7740
Fruit 8840
MeatIII
3340
Pasta 101040
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
12:40=0,30
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 121240
=0,30
Vegetables 7740
=0,18
Fruit 8840
=0,20
MeatIII
3340
=0,08
Pasta 101040
=0,25
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
Favourite food
Tally marks
Absolute Frequency
Relative Frequency
Pizza 121240
=0,30
Vegetables 7740
=0,18
Fruit 8840
=0,20
MeatIII
3340
=0,08
Pasta 101040
=0,25
Total number of events
40
IIIIIII
II
IIII
IIII
II
IIII
IIII
IIII
0,30 + 0,18 + 0,20 + 0,08 + 0,25 =
1
Because the sum of all the relative frequencies is the unit.
