Asked by Ulia
Test scores of average 7th grade class are: 77,83,92,66,89,74,98,79,85,75,80,88,76,96,84,100,71,93,70,82
The mean is 82.9 and the standard deviaition is 9.7
1. What score is in the 80th percentile?
2. Your teacher tells you that your score beat 78% of the scores on the test. What was your score?
The mean is 82.9 and the standard deviaition is 9.7
1. What score is in the 80th percentile?
2. Your teacher tells you that your score beat 78% of the scores on the test. What was your score?
Answers
Answered by
Steve
arrange the scores in order.
The 80th %ile is that score above 80% of the others.
Your score is the 78th %ile, so it should be close to the score found above.
The 80th %ile is that score above 80% of the others.
Your score is the 78th %ile, so it should be close to the score found above.
Answered by
edrionkersh
what a 66 in 7th grade is
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