Lesson 16: Estimating Population Proportions | Unit 8: Probability and Sampling

Multiple Choice

Based on Tyler's sample, estimate what proportion of the students would dye their hair blue.

• 50%
• 10%
• 5%
• 20%

Multiple Choice

Based on Kiran's sample, what proportion of the students would dye their hair blue?

• 10%
• 20%
• 25%
• 15%

Open Ended

Whose estimate is more accurate? Explain how you know.

Multiple Choice

Estimate the proportion of the students who like lasagna as their favorite pasta dish.

• 0.3
• 0.7
• 0.5
• 0.1

Multiple Choice

Elena wants to know what proportion of people have cats as pets. Which of the following processes could she use to estimate an answer to her question?

• Conduct a survey of a random sample of people.
• Look up statistics on dog ownership instead.
• Count the number of cats in her neighborhood.
• Ask her friends if they have cats.

Multiple Choice

A random sample of people were asked which hand they prefer to write with. “L” means they prefer to use their left hand, and “R” means they prefer to use their right hand. Here are the results: * L * R * R * R * R * R * R * R * R * R * L * R * R * R * R Based on this sample, estimate the proportion of the population that prefers to write with their left hand.

• 0.1
• 0.5
• 0.25
• 0.1333