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Cut -off Score Quiz-FEdor

Posljednje ažuriranje almost 5 years ago

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Pitanje 1

1.

At N.B.H.S., there are 245 seniors scheduled to graduate. The top ten percent in grade average will receive a scholarship. If the mean of the population is 88, with a standard deviation of 3, then what is the cut-off score to be in the top 10 percent?

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Pitanje 2

2.

If you are a freshman and in the bottom five percent of reading scores, then you are required to be in a remedial reading class to imporve your reading. The population mean for reading scores is 54, with a standard deviation of 12. What is the cut-off score that determines if you are required to take the remedial course?

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Pitanje 3

3.

In the N.B.A., being in the middle 70 percent of the league is not a good thing. If you are, you usually miss the playoffs and you are not eligible for a lottery pick. The average wins for a N.B.A. team is 41, with a standard deviation of six. What are the cutoff scores for the middle 70 percent in terms of wins. Round your answers to whole numbers (wins).

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Pitanje 4

4.

What is the probability of being accepted to UCONN with a SAT score of 1220? The population mean for SAT scores is 1130, with a standard deviation of 45.

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Pitanje 5

5.

The top 20 percent of all statisticians earn over $155,000. The population mean for statisticians is $140,000. What is the standard deviation for this distribution?