Standardized tests: In a particular year, the mean score on the ACT test was 27.8 and the standard deviation was 6.2. Themean score on the SAT mathematics test was 548 and the standard deviation was 119, The distributions of both scores wereapproximately bell-shaped. Round the answers to at least two decimal places.Part: 0 / 4Part 1 of 4(a) Find the z-score for an ACT Score of 30.oloThe z-score for an ACT score of 30 is画

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Answered: Standardized tests: In a particular…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A student scored 66 on a general science test where the class mean and standard deviation were 82 and 8, respectively; he also scored 53 on a psychology test where the class mean and standard deviation were 58 and 3, respectively. In which class was his relative position higher?
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... x 0.9 A graph with a bell-shaped curve, divided into 2 regions by a line from top to bottom, on the left side. The region right of the line is shaded and labeled 0.9. The x-axis below the line is labeled "x". Question content area bottom Part 1 The indicated IQ score, x, is enter your response here. (Round to one decimal place as needed.)
One of the z-score formulas will help on this question. Scores on the SAT test are normally distributed with a mean of 500 and standard deviation of 100 points. Pretend someone scored 400 on the math portion of the SAT test. What would be the z-score cut off for this score? A. 1.0 B. -1.0 C. 0 D. 2.0
Pat took three exams. In Mathematics, her grade was 75, the mean was 90, andthe standard deviation was 15. In Physics, her grade corresponded to a Z-Scoreof –1.25. In Latin, her grade was 73 and the average was also 73. (i). In which class is Pat’s relative position strongest? _______________(ii). In which class was Pat’s relative position weakest? ___________
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
Todd just got back his exam grades in three classes. In biology the class mean was 75.80 with a standard deviation of 5.15, Todd got an 84.00. In political science the class mean was 84.00 with a standard deviation of 5.50, Todd got an 84.00. In economics the class mean was 87.50 with a standard deviation of 5.60, Todd got a 84.00. 4. Which class showed the highest variability in scores? 5. Which class showed the lowest variability in scores? 6. Which class had the highest average test score?
Students in a class took a test whose results were normally distributed. The mean score was an 81 and the standard deviation was 4.5. What score is at the 83rd percentile (round to the nearest whole number.) a.84 b.83 c.85 d.86
Valentina obtained a score of 75 in a science exam and 90 on her English exam. on which test did she show better performance to the rest of the class? consider the mean and standard deviation values for science is 80 and 8 respectively and for English are 140 and 25.
z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?
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