In each situation, identify the sample and the population

a) Iplay surveyed his math class to determine the most popular gaming system for his grade.

b) Meask questions people as they pass by in the hall about who they think will win the Student Council election.

c) Luvsoda surveys grocery stores to find the most popular soft drink.

d) Imbrite tested a light bulb shipment to determine the failure rate for the light bulbs manufactured by the company.

2. The school is considering changing their lunch period from 60 minutes to 40 minutes. To obtain some feedback, a survey has been developed for students to complete. For each situation provided, identify the sampling technique used and explain whether it would contain any bias. If it does contain bias, provide a suggestion on how the bias could be eliminated. a) 20 students are selected from each grade.

b) Every 20th person that enters the front doors of the school will be asked.

c) Eight homerooms are selected. d) They are handed out to students in the cafeteria at lunch.

e) The surveys are handed out around the school before school starts and students are told they can return the completed surveys to the main office.