SOLUTION: Please help me with this question. It was on a quiz I took and missed. There are four parts and I am lost. Someone please help! 11.(4 pts) The following statistics provide i

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Question 195620: Please help me with this question. It was on a quiz I took and missed. There are four parts and I am lost. Someone please help!

11.(4 pts) 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?
b) What was the most common score?
c) What percentage of the test takers scored 678 or better?
d) If Joe had a score of 890, explain the meaning of his score.

Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
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.