<PRE><B>Question 195620</B>
The following statistics provide information about the scores on a national History exam. 
Mean 540 ----------- First Quartile 260
Median 450 ----------- Third Quartile 678
Mode 468 ----------- 90th Percentile 890 
a) What score did half of the test takers surpass? 
Ans: Median = 450
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b) What was the most common score?
Ans: Mode = 468
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c) What percentage of the test takers scored 678 or better? 
Ans: 25% is above the 3rd Quartile
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d) If Joe had a score of 890, explain the meaning of his score.
Ans: 90% have a lower score
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Cheers,
Stan H. 
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