Maths-
SAT
Easy
Question
In a recent state election, Mrs. Smith was a candidate for governor. A sample of 21 voting districts was selected at random from all voting districts in the state. From each district in the sample, 200 registered voters were selected at random and asked whether they planned to vote for Mrs. Smith. Each point in the scatterplot above represents the number of registered voters in one of the 21 districts and the estimated proportion of voters in that district who plan to vote for Mrs. Smith. Four districts (A, B, C, and D) are labeled in the scatterplot. A line of best fit for the data is also shown.
Based on the sample, which of the labeled districts in the scatterplot has the greatest number of registered voters who plan to vote for Mrs. Smith?
- A
- B
- C
- D
The correct answer is: C
District C has the point which has the highest proportion, So, option C.
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In a recent state election, Mrs. Smith was a candidate for governor. A sample of 21 voting districts was selected at random from all voting districts in the state. From each district in the sample, 200 registered voters were selected at random and asked whether they planned to vote for Mrs. Smith. Each point in the scatterplot above represents the number of registered voters in one of the 21 districts and the estimated proportion of voters in that district who plan to vote for Mrs. Smith. Four districts (A, B, C, and D) are labeled in the scatterplot. A line of best fit for the data is also shown.
Based on the line of best fit, which of the following is closest to the predicted proportion of registered voters who plan to vote for Mrs. Smith in a district with 20,000 registered voters?
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