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the average score on the sat in idaho is 1005 with a standard deviation of 182, what score would you need to score above the 75% percentile?

User Navderm
by
6.1k points

1 Answer

4 votes

Answer:

  • 1128 or more

Explanation:

According to the z-score table 75% or 0.75 is corresponding to 0.674.

It means the value of 75% percentile is 0.674 times standard deviation more than the mean

  • 1005 + 182*0.674 = 1128 (rounded up)

Thus you should score 1128 or more

User Skjalg
by
6.1k points
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