MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A certain standardized test's math scores have a bell-shaped distribution with a mean of
525
and a standard deviation of
110.
Complete parts (a) through (c).(a) What percentage of standardized test scores is between
415
and
635?
nothing%
(Round to one decimal place as needed.)Expert Solution
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- Students in a class were given a quiz. These were their scores: 7 8 10 9 8 8 4 6 7 8 9 8 6 8 5 What is the standard deviation for these students' quiz scores?arrow_forwardScores on an aptitude test are normally distributed with a mean of 960 and standard deviation of 120. Use the Cumulative Z-Score Table to answer the following questions. Write your answer rounded to the nearest whole number. If 1,570,000 students take the test.. how many would you expect to score above 1224? students ...how many would you expect to score above 972? students ...how many would you expect to score between 972 and 1224? studentsarrow_forwardAnswer all questions: 1. What is the range and standard deviation for the following population of scores? Scores: 5,2,5,4arrow_forward
- Steve's average golf score at his local course is 92.9 from a random sample of 60 rounds of golf. Assume that the population standard deviation for his golf score is 4.2. The standard error of the mean for this sample is ________. A) 0.54 B) 1.17 C) 1.56 D) 2.30arrow_forwardThe test scores on a science quiz were: 50 50 63 71 74 74 75 77 78 80 85 99. This is a population! ALL QUIZ GRADES! Determine the mean (round to the nearest whole number) and standard deviation (Round to the hundredth place- two decimals). The mean is? and the deviation is ?arrow_forward
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