Continue with Microsoft TeamsOntario Curriculum Expectation:
5.D1.1 explain the importance of various sampling techniques for collecting a sample of data that is representative of a population.
Use the following techniques to find a sample that can represent the population without bias.
Simple Random Sampling
Randomly select subject but make sure everyone in the population has an equal chance of being selected.
For example: the principal can randomly pick 80 students to send a survey home with them but when the 80 students are picked, they must be selected randomly and make sure each student has an equal chance to be picked.
Systematic Random Sampling
Randomly select subjects with a systematic approach.
For example: the principal can use a list of all students and randomly pick 1 student out of 10 students.
Stratified Random Sampling
The population is divided into different groups and randomly pick a sample population from each group to make sure each group is represented.
For example: the principal can randomly pick 10 students from each of the 8 grades. This will make sure each grade is represented in the survey.
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1 of 101. Question
1. Choose the sampling technique used in the following scenario.
A clinic randomly selects 5% of its patients and asks for their opinions on the services provided at the clinic.
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2 of 102. Question
2. Choose the sampling technique used in the following scenario.
A magazine with 50 000 subscribers wants to survey its subscriber’s background. The marketing department prepares a list of all subscribers and picks out every 100th subscriber and sends them an email.
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3 of 103. Question
3. Choose the sampling technique used in the following scenario.
Parks Canada is surveying the use of different national parks and conservation areas. They group the parks and conservation areas based on their sizes and location. Then, they randomly survey 2 parks and 3 conservation areas from each group.
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4 of 104. Question
4. Choose the sampling technique used in the following scenario.
A mall is surveying the shoppers on their opinions for the upcoming reimagining of the mall. A team of staff will randomly invite shoppers at the mall to participate in the survey.
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5 of 105. Question
5. Choose the sampling technique used in the following scenario.
The city council tries to get the citizens’ feedback on the city services. They randomly select 20 addresses from each postal code to conduct surveys.
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6 of 106. Question
6. Choose the sampling technique used in the following scenario.
Pedro’s Deli wants to know the primary form of payment made by its customers. During the day, Pedro’s Deli makes note of the payment method of every 10th customer they serve.
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7 of 107. Question
7. Choose the sampling technique used in the following scenario.
Each employee at an office has an employee number. Management has a computer generate 100 random employee numbers and those workers are asked to take a survey.
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8 of 108. Question
8. Choose the sampling technique used in the following scenario.
A school chooses 5 randomly selected students from each of its clubs to participate in a survey about the clubs at the school.
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9 of 109. Question
9. Choose the sampling technique used in the following scenario.
A music app wants to find out its listener’s preferred music genre for playlists. The music app chooses every 1000th listener and sends them a survey.
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10 of 1010. Question
10. Choose the sampling technique used in the following scenario.
At a conference, each guest’s name is put in a box. The box is shaken up and a name is pulled out at random.
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