MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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- Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. n= 129, p = 0.25 The mean, H, is (Round to the nearest tenth as needed.)arrow_forwardLet X de a normally distributed variable with a population standard deviation = 43. A research believe that the standard deviation should increase when a new variable is manipulated. To test their claim, the research collects a sample of size n = 19 and finds a sample statistic of 8 = 53. Use the x²-table to find the largest value that the corresponding P-value can be. Type your answer...arrow_forwardAssume the random variable X is normally distributed, with mean μ=42 and standard deviation σ=9. Find the 9th percentile. The 9th percentile is ______ (Round to two decimal places as needed)arrow_forward
- What is the z-score of x = 3 if it is 2 standard deviation to the left of the mean? -3 -2 1 O 2 1.arrow_forwardf the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4, then the standard error of the mean isarrow_forwardChebyshev's Theorem states that for any distribution of numerical data, at least 1-1/k? of the numbers lie within The percent of numbers between 88 and 112 is at least %. k standard deviations of the mean. (Round to the nearest hundredth as needed.) In a certain distribution of numbers, the mean is 100, with a standard deviation of 6. Use Chebyshev's Theorem to tell what percent of the numbers are between 88 and 112.arrow_forward
- Assume that a randomly selected subject is given a bone density test. Bone density test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find Upper P 10 ,the 10 th percentile. This is the bone density score separating the bottom 10% from the top 90%. a. The bone density score corresponding to Upper P 10 is (Round to two decimal places as needed.)arrow_forwardA standardized exam's scores are normally distributed. In a recent year, the mean test score was 1458 and the standard deviation was 312. The test scores of four students selected at random are 1860, 1220, 2150, and 1340. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1860 is (Round to two decimal plaes as needed.)arrow_forwardFind the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. n=122, p=0.25 The mean, μ, is 30.5. (Round to the nearest tenth as needed.) The variance, a², is 7.62. (Round to the nearest tenth as needed.)arrow_forward
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