TWO WAY RELATIVE FREQUENCY TABLES WORKSHEET
About "Two way relative frequency tables worksheet"
Two way relative frequency tables worksheet :
Worksheet given in this section is much useful to the students who would like to practice problems on creating two-way relative frequency tables.
Two way relative frequency tables worksheet - Problems
Problem 1 :
A survey is conducted among school students. 50 students are randomly selected and they are asked, whether they prefer dogs, cats or other pets. In the survey, 10 boys preferred dogs, 9 boys preferred cats, 3 boys preferred other pets, 12 girls preferred dogs, 6 girls preferred cats and 10 girls preferred other pets. Construct a two-way relative frequency table for the above data.
Problem 2 :
100 students in a middle school are asked, how they travel to school. 25 boys prefer car, 34 boys prefer bus, 41 boys prefer other transports, 22 girls prefer car, 38 girls prefer bus and 40 girls prefer other transports. Construct a two-way relative frequency table for the above data.
Two way relative frequency tables worksheet - Solution
Problem 1 :
A survey is conducted among school students. 50 students are randomly selected and they are asked, whether they prefer dogs, cats or other pets. In the survey, 10 boys preferred dogs, 9 boys preferred cats, 3 boys preferred other pets, 12 girls preferred dogs, 6 girls preferred cats and 10 girls preferred other pets. Construct a two-way relative frequency table for the above data.
Solution :
Step 1 :
Make a table by taking the categories "Boy" and "Girl" in rows and the categories "Dogs", "Cats" and "Other pets" in columns as given below.
Step 2 :
Fill the tables using the data given in the question.
Step 3 :
Find the total for each gender by adding the frequencies in each row.
Step 4 :
Find the total for each pet by adding the frequencies in each column.
Step 5 :
Find the grand total, which is the sum of the row totals as well as the sum of the column totals. Write this in the lower-right corner.
Step 6 :
Divide each number in the above two-way frequency table by the grand total 50. Write the quotients as decimals.
Problem 2 :
100 students in a middle school are asked, how they travel to school. 25 boys prefer car, 34 boys prefer bus, 41 boys prefer other transports, 22 girls prefer car, 38 girls prefer bus and 40 girls prefer other transports. Construct a two-way relative frequency table for the above data.
Solution :
Step 1 :
Make a table by taking the categories "Boy" and "Girl" in rows and the categories "Car", "Bus" and "Other transports" in columns as given below.
Step 2 :
Fill the tables using the data given in the question.
Step 3 :
Find the total for each gender by adding the frequencies in each row.
Step 4 :
Find the total for each transport by adding the frequencies in each column.
Step 5 :
Find the grand total, which is the sum of the row totals as well as the sum of the column totals. Write this in the lower-right corner.
Step 6 :
Divide each number in the above two-way frequency table by the grand total 200. Write the quotients as decimals.
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