Question

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Explanation:

Identify the population

The population represents the entire group of individuals about whom we want to gather information. In this study, the target group is all adults in the country.

Identify the sample

The sample is the specific subset of the population from which data is actually collected. Here, it is the 999 randomly selected adults.

Identify the population parameter

A parameter is a numerical characteristic of the entire population. In this study, it is the percentage of all adults in the country who believe there has been progress in finding a cure for cancer.

Answer:

Question 1

• A. 7 out of 10 of the 999 adults selected
• B. 7 out of 10 adults in the country
• C. The 999 adults selected
• D. All adults in the country (Correct answer)

Question 2

• A. All adults in the country
• B. The 999 adults selected (Correct answer)
• C. 7 out of 10 of the 999 adults selected
• D. 7 out of 10 adults in the country

Question 3

• A. The number of adults selected
• B. The total number of all adults in the country
• C. The percentage of the 999 adults selected who believe there has been progress
• D. The percentage of all adults in the country who believe there has been progress (Correct answer)