6 scores:and standard deviation!14. a. After 3 points have been added to every score ina sample, the mean is found to be M = 83 andthe standard deviation is s = 8. What were thevalues for the mean and standard deviation forthe original sample?population%3D%3Don mean in yourthe standard4.2).dard deviationdoes your estimateof o?)D. After every score in a sample has been mulupleby 4, the mean is found to be M = 48 and thestandard deviation is s = 12. What were uevalues for the mean and standard deviation ethe original saScores:%3Db. After every score in a sample has been multiplieivalues for the mean and standard deviation for

Measure of central tendency measures the central or average value of a dataset. Measured of…

Answered: 14. a. After 3 points have been added…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Alice was told that her reading test score was one standard deviation below to me if test scores were approximately normal with m= 86 and standard deviation= 4. What was Alice's score?
Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15. Find P25, which is the IQ score separating the bottom 25% from the top 75%. Round your answer to nearest tenth.
An incoming MBA student took placement exams in economics and mathematics. In economics, she scored 82 and in math 87. The overall results on the economics exam had a mean of 71 and a standard deviation of 7, while the mean math score was 69, with a standard deviation of 10. On which exam did she do better compared with the other students? Since she scored standard deviations V the mean in economics and standard deviations V the mean in mathematics, she did better on the exam. (Round to two decimal places as needed.)
Jerome made a grade of 89.7 on his test. The mean of the test scores was 71.4 with a standard deviation of 6.8. In what top percent can Jerome say he is, based on the tes
The average of the final exam grades of a course attended by four hundred students is calculated as 60 points and the standard deviation as 15 points. A letter grade will be given to those who score 80 and above in the exam. What is the rate of 0 and above and how many people can be estimated to get A?
5. The average weight of a newborn baby is 7.5 lbs with a standard deviation of 1.25 lbs. The average weight of a newborn elephant is 244 lbs with a standard deviation of 15 lbs. Find the Coefficient of Variation for the baby and the elephant. What does the information tell you?
If the grades of 100 students have mean 18 and standard deviation 4. If we subtract 3 from each student, then we divide by -2. The new standard deviation is Select one: O a. 2 O b. 4 O c. -2 O d. -4
grade was 74 and the standard deviation was 12. She received a grade of 72 on her biology exam, where the mean grade A student Pat was done taking midterms. She received a grade of 82 on her statistics exam, where the mean grade was 88 and the standard deviation was 6. In what class did Pat relatively score better? Explain. Give answers to was 65 and the standard deviation was 10. Lastly, she received a grade of 91 on her kayaking exam where the mean 2 decimal places as needed.
Two players, Fredo and Karl, on different teams wanted to find out who scored the higher number of points when compared to the other players on his team. Table 2.57 Player His Average Points Other's Average Points Other's Standard Deviation Fredo 137 152 10 Karl 127 151 30 Which player had the higher average points when compared to the other players on his team? Fredo Karl Use Table 2.57 to find the value that is three standard deviations above the mean for each team.Enter the exact answers. Fredo's team: Karl's team: Use Table 2.57 to find the value that is three standard deviations below the mean for each team.Enter the exact answers. Fredo's team: Karl's team:
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. 10. What percentage of the economics class scores higher than Todd? 11. Which class is Todd doing best in? State how you determined your answer. 12. Which class is Todd doing worst in? State how you determined your answer.
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