19. For the following frequency distribution, what is the proportion associated with X 3?f4.4.13а. 0.10b. 0.20c. 0.30d. 0.4020. For the following distribution of quiz scores, if a score of X = 3 or higher isneeded for a passing grade, how many individuals passed?х f6.4.1 2a. 3b. 11c. 16. d. cannot be determined

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Answered: 20. For the following distribution of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Solve 3 and 4
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Last year over 7000 students took an entrance exam at a certain state university. Kareem's score was at the 44th percentile. Lella's score was at the 93rd percentile. (a) Which of the following must be true about Kareem's and Leila's scores? Both Kareem and Leila scored higher than the median. O Both Kareem and Lella scored below than the median. O Leila scored higher than Kareem. O Kareem scored higher than Leila. (b) Which of the following must be true about Kareem's score? O About 44% of the students who took the exam scored lower than Kareem. O Kareem got about 44% of the questions correct. O Kareem's score was in the top half of all scores. O Kareem missed 56 questions. Explanation Check X 3 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center
Samantha took an exam in her statistics class and received 90 out of 100. Samantha thought that was a good score, but she wanted to know how high her score was in relation to the rest of the class. Her professor said her Z-score was -0.29. How should Samantha interpret her Z-score? a. Samantha’s score is 0.29 points above the class mean.b. Samantha’s score is 29% above than the class mean.c. Samantha’s score is 0.29 standard deviations above the class mean.d. Samantha’s score is 0.29 standard deviations below the class mean.
I want answer
Answer all following questions or don't do it at all 10a. By employing a common base of 100, percentages facilitate the comparison of groups of unequal size. TRUE or FALSE? 11b. What percentage corresponds to 2/5? 12c. What percentage corresponds to l/100? 13d. If 66 subjects were studied and 21 of them expressed Opinion X, what percentage of them expressed Opinion X? 14f. If 462 subjects were studied and 99 of them expressed a preference for Brand Y, what percentage expressed a preference for Brand Y? 15h. When writing a scientific rep01i, there is no need to report Ns if percentages are being reported. TRUE or FALSE? 16j. In statistics, the uppercase P stands for percentage. TRUE or FALSE?
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20. For the following distribution of quiz scores, if a score of X 3 or higher is needed for a passing grade, how many individuals passed? X f 6. 4 5 3 5 2 3 1 2