Two way tables

Some other questions using two-way tables

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Question 2

The following two-way table helps to describe the audience in a cinema.

	Male	Female
Children	20	85
Adults	42	56

a How many males are in the cinema?

b How many children are in the cinema?

Question 3

Students in a city school carried out a survey of the students in their investigating whether or not they ate breakfast. The survey presented the question 'Do you eat breakfast on a regular basis?' and the students recorded the results along with the gender of each respondent. The results were organised in a table but 5 entries have not been made. Complete the table.

	Male	Female	Total
Eat breakfast regularly	value for Male, Eat breakfast regularly	410	value for Male, Eat breakfast regularly
Do not eat breakfast regularly	300	value for Female, Do not eat breakfast regularly	500
Total	620	value for Female, Total	value for Female and Male, Total

   

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Question 4

The 330 subjects volunteering for a medical study are classified by gender and blood pressure (high, normal and low). Complete the table below.

	High	Normal	Low	Total
Male	176	44	value for Low, Male	240
Female	value for High, Female	value for Normal, Female	24	90
Total	198	value for Normal, Total	44	330

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Using a Venn diagram