Demonstrate Random Sampling.
Lin is running in an election to be president of the seventh grade. She wants to predict her chances of winning. She has the following ideas for surveying a sample of the students who will be voting:
(1.) Would the different methods for selecting a sample lead to different conclusions about the population?
(2.) What are the benefits of each method?
(3.) What might each method overlook?
(4.) Which of the methods listed would be the most likely to produce samples that are representative of the population being studied?
(5). Can you think of a better way to select a sample for this situation?
Data collected from a survey of American teenagers aged 13 to 17 was used to estimate that 29% of teens believe in ghosts. This estimate was based on data from 510 American teenagers. What is the population that people carrying out the survey were interested in?
Jada is using a computer’s random number generator to produce 6 random whole numbers between 1 and 100 so she can use a random sample. The computer produces the numbers: 1, 2, 3, 4, 5, and 6. Should she use these numbers or have the computer generate a new set of random numbers? Explain your reasoning.