Question

A campaign is interested in knowing about support for their candidate. Which one of the following ways should they use to select a sample of adults from 100 households in their city?

• sk 1 adult from each of 100 households randomly selected from the city's household list.
• Ask 25 adults at each of the 4 grocery stores located in different parts of the city.
• Divide the town into 20 areas, and in each area ask 1 adult from each of the first 5 households that have someone at home.
• Randomly select 20 campaign volunteers who then each ask 5 adult who live on their street

Answer 1

Correct option:

Ask 1 adult from each of 100 households randomly selected from the city's household list.

Explanation:

They should use the method: "Ask 1 adult from each of 100 households randomly selected from the city's household list. " to select a sample of adults from 100 households in their city because this method of Samplng is Simple Random Sampling (SRS) in which each member of population has the same probability of being included in the sample. This method of selecting a sample of adults from 100 households in their city is described as follows:

Step 1: Make the city's household list.

Step 2: Randomly select 100 households from the city's household list.

Step 3: Ask 1 adult from each of 100 households randomly selected from the city's household list.