Concept explainers
To identify: The sample and suggest a population for which it is selected. State whether the sample is biased or unbiased, if unbiased, classify the sample as simple, stratified, or systematic.
Answer to Problem 39SR
The sample is unbiased and stratified random sample.
Explanation of Solution
Given information:
Mayfield High School participated in a survey to find out how teens feel about certain issues involving social networks. The responses are divided into group by each age and then tallied for each question.
Calculation:
Here, sample will be Teenagers in Mayfield School and population will all high school teenagers.
Since, the teenagers are equally likely to be chosen from the high school. Therefore, the sample is unbiased.
Also, since the responses are divided into age groups and then tallied for each question so, the sample is stratified random sample.
Hence,
The sample is unbiased and stratified random sample.
Chapter 12 Solutions
Algebra 1
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