how to calculate relative frequency (%) – pbworks

advertisement
How to calculate relative
frequency (%)
Definitions
Calculation
Example
Definitions
Frequency: how many times a property/
condition/event occurs within a
population or sample
 Relative frequency

◦ a proportion
◦ it is the value calculated by dividing the
frequency by the population or sample and
multiplying by 100
◦ It is written as a percent (%)
Calculation





There are 5 students with dyed hair in Miss.
Pitre’s grade 9 science class of 20 students.
 Relative frequency =
frequency ÷ population x 100
Frequency = 5
Population = 20
Relative frequency = 5 ÷ 20 x 100 = 25 %
25 % of Miss. Pitre’s grade 9 students have
dyed hair
Example

Hugo works on a farm. Out of his 50
cows, 15 of them are sick. What is the
relative frequency of cows that are NOT
sick. Show all your work.
Download
Related flashcards

Finance

14 cards

Finance

16 cards

Banks of Germany

43 cards

Banks of Russia

30 cards

Finance ministries

62 cards

Create Flashcards