In a poll, 1,003 adults in a country were asked whether they favor or oppose the use of federal tax dollars to fund medical research using stem cells obtained from human embryos. Among the respondents, 48 % said that they were in favor. Describe the statistical study. What is the population in the given problem?

Choose the correct answer below.
The 1,003 adults selected
48% of all adults in the country
48% of the 1,003 adults selected
All adults in the country

Identify the sample for the given problem. Choose the correct answer below.
48 % of all adults in the country
All adults in the country
48% of the 1,003 adults selected
The 1,003 adults selected

The sample always is a little part of the whole population. This part is the one that you are going use to study and make all the calculations (Example:average, median, percentage, standard deviation).

In that way, the sample represents all the population but is not the population, it's just a part.

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