Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 girls and boys in seventh grade. Which is the best way for Cheryl to get a representative sample without spending too much time?
Cheryl wants to find the number of hours seventh-graders do homework each week. There are 297 boys and girls in seventh grade. If Cheryl randomly surveyed 50 girls in the entire school to find the number of hours seventh-graders do homework each week, describe why she would get a biased sample.
Which of the following did you include in your response? Select all that apply. Randomly surveying 50 girls would most likely bring non-seventh-graders into the sample. The sample also does not take any boys into account, and they most likely make up about half of the seventh-grade population. The results would not be a representative sample of the population.
Which statement(s) describe her sampling method? Check all that apply.
Which gives the best definition of a representative sample?
Which of these statements are true about his sampling method? Select all that apply.
Alana’s method is✔ Ramiro’s method isBoth methods areNeither method is likely to result in a biased sample.
Question text not available
A newspaper publisher wants to check its daily output of about 300,000 newspapers to be sure each includes a comics section. Explain how the publisher could do this.
The publisher should take a random sample of the newspapers to check for the comics section. Checking every single newspaper is impractical, so selecting a representative sample at random will help ensure the quality of the batch without bias.
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