A class of students took a test. The instructor said that the 75th percentile score was 90 out of 100. What does this mean? A. 90% of the students scored 75 or more on the test. B. 75% of the students scored 90 or more on the test. C. 25% of the students scored 90 or more on the test. D. The high score in the class was (.75)(90).

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A: Solution: The objective is to find the number of students who scored A grade

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Q: Susan ranks 10th in a class of 40. Her percentile rank is 75. Why 75 is her percentile rank?

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A: We have to percentile for 79 ..

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Q: The 50th percentile for the following data is 65, 70, 67,75, 89, 80 O a. 72.5 O b. 67 О с. 75 O d.…

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Q: THE RANGE OF SCORES 17,19,19,23,26

A: We know that the range is the difference between the maximum and minimum value.

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A: b. 50th

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A: The strength and direction of linear relationship between two variables is measured by correlation.

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Q: What is the value of the mean? P(X=x) 0.15 0.20 0.15 0.50 Answer: 3.

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Q: ATHLETICS BAND TOTAL 6TH 101 123 224 64 91 155 8TH 110 75 185 TOTAL 275 289 564 A survey was taken…

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Q: Which of the following could be the median of the waiting times, in minutes? O 17.25 O 15.00 O 12.25…

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Q: median

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