(1 mark each = 3 marks) Data Collection Method Type of Bias a) A science class asks every fifth student entering the cafeteria during all lunches to answer a survey on environmental issues and return the completed survey by the end of lunch. b) A branch of a bank conducts a customer satisfaction survey. It does this by collecting opinions from each of the customers it serves one Monday. c) A survey is designed to determine how Canadians will vote in the next election. It surveys 100 randomly selected adults from each province and territory. 2. Identify the type of random sampling in each of the following scenarios: (1 mark each = 4 marks) Scenario Type of Sampling a) A university program has 800 male students and 200 female students. A researcher would like to select 80 males and 20 females from the program for a study. In order to assess the impact of acid rain on a northern lake, a randomly chosen day of the week is selected. Then water samples from the lake are collected on that day every week for a year. c) A survey of students living in a high-rise residence is to be conducted. The residence has 10 floors, 20 rooms per floor, and 2 people per room. 2 floors are randomly selected and every student on each of those floors is surveyed. d) The first 5 numbers called in a BINGO game are selected by drawing balls from a rotating bin in which all the numbers have been placed. 3. Identify the type of questions asked in the bullying survey shown below. (1 mark each = 3 marks) a. What grade are you in? 10 11 12 Question type: b. What do you think is the underlying reason for bullying? Question type: c. Place a number (between 1-easiest to be bullied and 5- harder to be bullied) beside each location to describe the level of danger: Question type: Hallway School Bus Classroom Smokers Corner Parking Lot Bathroom