AFM Statistical Studies and Sampling Methods Practice

Identify each of the following as an observational study or an experiment.

Compare the grades on a final math test of 25 students who use calculators and 25 students who do not use calculators. The students decide which group they are in.

• Observational Study

• Experiment

Tags

CCSS.HSS.IC.B.3

Identify each of the following as an observational study or an experiment.

Compare voter satisfaction levels between people assigned to use either paper ballots or touch‐ screen machines.

• Observational Study

• Experiment

Tags

CCSS.HSS.IC.B.3

Identify each of the following as an observational study or an experiment.

Determine if people who take vitamin C every day are less likely to get colds.

• Observational study

• Experiment

Tags

CCSS.HSS.IC.B.3

Identify each of the following as an observational study or an experiment.

Determine which brands of orange juice people prefer. The people are randomly chosen at the supermarket and are asked to taste both brands without knowing which brand they are drinking.

• Experimental

• Observational Study

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

For each situation, choose the most appropriate technique for collecting data. Use the technique exactly once.

Estimate the number of students in your school who play video games more than 10 hours per week.

• Census

• Sample Survey

• Observational Study

• Experiment

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

For each situation, choose the most appropriate technique for collecting data. Use the technique exactly once.

Decide if computer games are more effective than paper and pencil drills for children learning the multiplication tables.

• Census

• Sample Study

• Observational Study

• Experiment

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.5

For each situation, choose the most appropriate technique for collecting data. Use the technique exactly once.

Find out if not using car seat belts increases deaths and accidents.

• Census

• Sample Study

• Observational Study

• Experiment

Tags

CCSS.HSS.IC.B.3

For each situation, choose the most appropriate technique for collecting data. Use the technique exactly once.

Compare average class size for math classes and English classes in your high school.

• Census

• Sample Study

• Observational Study

• Experiment

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

Explain why each of these samples might be biased.

The first 10 customers of the day at a restaurant are asked if pizza should be added to the menu.

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1

Explain why each of these samples might be biased.

A random selection of women are called every morning for a week to determine if television shows are too violent.

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.A.1