Traffic Analysis in Two Areas

Hard Data Sufficiency Analyzing Information

In a city, a transportation analyst is evaluating the average daily traffic in two different areas, Area A and Area B. The analyst wants to determine whether the average daily traffic in Area A is greater than that in Area B.

Statement (1): The average daily traffic in Area A over the past month was 1,200 vehicles, while in Area B it was 1,000 vehicles.

Statement (2): The average number of vehicles in each area fluctuated significantly with a standard deviation of 300 vehicles for Area A and 250 vehicles for Area B.

Statement (1) alone is sufficient, but statement (2) alone is not sufficient.

Statement (2) alone is sufficient, but statement (1) alone is not sufficient.

Both statements together are sufficient, but neither statement alone is sufficient.

Each statement alone is sufficient.

Hint

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Correct849

% Correct71%