If the average grade on an exam was 75% and the standard deviation was 4%, what would the three upper limitintervals be for the given normal curve by the empirical rule?O 72, 77, and 90O 79, 83, and 87O 83, 87, and 91O 75, 79, and 83F Sunny Aosearch1 199ww.PAU6)WIL SLTWIN404RTLEnterDFGKV BAltCtrl

Empirical rule has Upper limit Mu +K. sigma

Answered: If the average grade on an exam was 75%…

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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A population of N=5 scores has a mean of μ=8. If one score with a value of X=4 is removed from the population, what is the value for the new mean? a. μ=9 b. μ=10 c. μ=8 d. μ=7
1. IQ scores have a mean of 100 and a standard deviation of 16. Albert Einstein reportedly had an IQ of 160. Convert Einstein's IQ score to a z score. a. b. If we consider "usual IQ scores to be those that convert z scores between -2 and 2, is Einstein's IQ usual or unusual? C. The organization MENSA, which calls itself the "high IQ society", requires a score of 130 or higher. What percent of adults would qualify for membership? 2. In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0 represents the worst possible life and 10 represents the best possible life. The responses were normally distributed, with a mean of 5.4 and a standard deviation of 2.2. Find the probability that a randomly selected study participant's response was: a. Less than 4 b. Between 4 and 6 c. More than 8 3. The red blood cell count for a population of adult males can be approximated by a normal distribution, with a mean of 5.4 million cells…
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A sample has a mean of M = 30. If one person with a score of X = 35 is removed from the sample, what effect will it have on the sample mean? Lütfen birini seçin: A. Cannot be determined from the information given B. The sample mean will decrease. C. The sample mean will increase. D. The sample mean will remain the same.
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7.
3.The average GPA scored by a class is 4.76, and the standard deviation is 0.64. For a sample of 16 students, find the z-score that the average is above 5.0. A.0.375 B.1.5 C.0.75 D.6
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If the average grade on an exam was 75% and the standard deviation was 4%, what would the three uper limit intervals be for the given normal curve by the empirical rule? O 72, 77, and 90 O 79, 83, and 87 O 83, 87, and 91 O 75, 79, and 83