1. The school cafeteria collects data on students' juice box flavor preferences. This is an example of numerical, ordinal data. C categorical, ordinal data. B numerical, nominal data. D categorical, nominal data. 2. Which is an example of continuous data? shirt sizes C amount of water consumed in a day B class size D number of taxicabs in a fleet 3. Tetyana obtains a list of all of the students in the school. She selects every 10th student from the list to take part in a survey. What type of sampling method has she used? A simple random C systematic B Cluster D convenience 4. International mathematics tests were administered in 10 countries chosen at random. In each country, 20 schools were chosen at random, and 30 students in each school were chosen at random. This sampling technique is known as A cluster. C stratified. B systematic. D multistage. 5. Which rating scale would be considered most suitable? A O average O good O excellent C O like a lot O like a little O neutral Onever O sometimes always D always Doften once in a while 6. Which survey question contains bias? A Would you use a public swimming pool if C Would you agree to pay higher municipal one was built? taxes? B Would you vote for building a skateboard D Would you try a new flavour of ice park in town? cream? 7. Sonya collected data on the shoe size worn by each member of her class. She used this data to calculate the average shoe size in the class. This average is A primary microdata. C secondary microdata. B primary aggregate data. D secondary aggregate data. 8. Which data is considered primary source data? A The principal of a school calculates the C A student compares MP3 player average mark in a class from teacher- specifications on the website of an submitted data. electronics retailer. B An undertaker uses the obituaries in the D A chief financial officer collects data on local newspaper to determine how many employee salaries. people have died in the last month.9. A local newspaper asks readers to vote online whether the city should build an off-leash dog park. This survey is likely to suffer from A response bias. sampling bias. B measurement bias. D non-response bias. 10. Which is a leading question? A What colour do you favour for the C What animal should be the mascot of the repainting of the town water tower? school football team? B Which political party is best suited to D Do you favour government regulation of governing the country? gasoline prices to stop the perceived gouging at the pumps? For questions 1 to 5. Match the correct term to each of the following descriptions. A term may be used more than once or not at all. numerical ordinal categorical qualitative nominal quantitative 1. Data that can be sorted into distinct groups 2. Qualitative data that can be ranked 3. Data in the form of any number 4. Another name for categorical data 5. Qualitative data that cannot be ranked._ 6. Identify the following variable as Continuous Numerical Data, Discrete Numerical Data, Categorical Ordinal Data or Categorical Nominal Data: a) the amount of time per week students study b) a sample of students is interviewed to determine how much they enjoy a new TV series. Students answered on a scale from 1 to 4 (1 Dislike it; 4 Liked it Very Much). The data collect is 7. For questions 7. Match the correct term to each of the following descriptions. A term may be used more than once or not at all. simple random multistage systematic convenience stratified voluntary cluster a) Allow participants to choose whether to participate. b) Divide the sample into groups with the same proportions as those in the population. c) Choose individuals from the population who are easy to access.9. Classify the bias in each of the following scenarios A response bias. C measurement bias. B sampling bias. D non-response bias. a) Members of a golf and country club are polled regarding the construction of a highway interchange on part of their golf course: b) A group of city councilors are asked whether they have ever taken part in an illegal protest. c) A random poll asked the following question "The proposed casino will produce a number of jobs and economic activity in and around your city, and it will also generate revenue for the provincial government. Are you in favour of this forward-thinking initiative? d) A survey uses a cluster sample of Toronto residents to determine public opinion on whether the provincial government should increase funding for the public transit. 1. Give an example of data that appear to be numerical but are actually categorical, ordinal data. 2. In a class action lawsuit against a financial company that defrauded investors of an average of $5000, $12 000 000 was awarded to the 2500 plaintiffs involved in the suit. The company quotes the total amount in a newspaper ad, claiming that it is too much and should be reduced. Is this correct? 9. A newspaper publishes the graph shown. The bars represent the percent of voters that support each party. Is this graph reliable? Give a reason for your answer. Percent of Voters 70 60 50 40 30 20 10 Pro Con Mid