A lecturer wants to take a sample of 40 students from a class of 160 to complete a survey on the module. In the past they have tried two ways: asking the first 40 students who turn up to lectures or emailing a survey to the entire class. Her friend, a statistics lecturer, suggests asking each student in lecture to toss a coin twice and select the students who get two heads. Which approach would you prefer and why, or does it actually matter?

A lecturer wants to take a sample of 40 students from a class of 160 to complete a survey on the module. In the past they have tried two ways: asking the first 40 students who turn up to lectures or emailing a survey to the entire class. Her friend, a statistics lecturer, suggests asking each student in lecture to toss a coin twice and select the students who get two heads. Which approach would you prefer and why, or does it actually matter?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 25PPS

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A lecturer wants to take a sample of 40 students from a class of 160 to
complete a survey on the module. In the past they have tried two ways: asking the
first 40 students who turn up to lectures or emailing a survey to the entire class.
Her friend, a statistics lecturer, suggests asking each student in lecture to toss a
coin twice and select the students who get two heads. Which approach would you
prefer and why, or does it actually matter?

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