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QUESTION 14 A sample of university staff and students was asked whether they preferred catching public transport or driving their own car to university. The data collected is shown in the table. Public transport Drive own car What percentage of university students prefer to drive their own car? A) 12% (B) 15% C) 20% (D) 40%
QUESTION 22 (4 marks) A store asked its junior and senior staff whether or not they would like to change the store uniform. The results are in the frequency table. Change uniform ‘ Do not change uniform Junior staff Senior staff a) Convert the two-way table into a percentaged two-way frequency table using column totals. [2 marks] b) Explain whether there is an association between staff groups and a desire to change the store uniform. [2 marks]
QUESTION 3 The table shows the results of a student survey about their preferred movie genre. 2 Of the students who preferred comedy what percentage were in Year 9 or higher? (A) 25% (B) 30% (C) 60% (D) 75%
QUESTION 11 Which option is an example of bivariate data? (A) (B) ©) (D) The rating given to a brand of meat pies as poor fair or good. The number of people in a household and amount of water used. The number of cars passing through a particular set of traffic lights. The time a person spends using a mobile phone on a Friday evening.
QUESTION 13 The two-way table summarises the semester 1 results for students enrolled in two courses Machinery and Electrical. Students achieved either satisfactory (S) or unsatisfactory (U). Machinery S U The 10% cell in the table indicates that (A) 10% of all students achieved satisfactory in Electrical. Electrical (B) 10% of all students achieved unsatisfactory in Machinery. (C) 10% of the students who achieved satisfactory in Electrical achieved unsatisfactory in Machinery. (D) 10% of the students who achieved unsatisfactory in Machinery achieved satisfactory in Electrical.
QUESTION 4 Athletes were surveyed about their preferred shoe brand: X Y or Z. The results are shown in the frequency table. mw | | | | The percentage of field athletes who prefer brand Y is (A) 12% (B) 15% (C) 30% (D) 40%
QUESTION 5 Bivariate data involves (A) two values. (B) two variables. (C) two data displays. (D) two data varieties.
QUESTION 24 (4 marks) Students were surveyed regarding their attitudes towards dancing and swimming. The resulting data is displayed in the table below. Enjoy dancing Do not enjoy dancing Enjoy swimming Do not enjoy swimming a) b) ©) Calculate how many students enjoy swimming [1 mark] Calculate how many students were surveyed. [1 mark] Calculate the percentage of students who enjoy both activities. Express your answer correct to two decimal places. [2 marks]
QUESTION 3 (4 marks) Music students in a school were asked how many hours they practised their musical instrument each week. Seventy-two Year 7 music students were surveyed. The results are shown below. 15 students practised for 2 hours or less. 53 students practised for more than 2 hours and up to 4 hours. 4 students practised for more than 4 hours per week. Seventeen Year 12 music students were surveyed. The results are shown below. 2 students practised for 2 hours or less. 11 students practised for more than 2 hours and up to 4 hours. * 4 students practised for more than 4 hours per week. Determine any patterns that suggest the presence of an association providing reasons for your conclusion.
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