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Answered: Iclase freguancy 3 1-10 一1120 21-30…

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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112.1Q)The degree of freedom for the chi squared distribution is 12. Find the value of the 92nd percentile of the chi squared distribution. The value is (Round your answer to three decimal places.)
A set of 700 exam scores is normally distributed with a mean = 76 and standard deviation =
1. Prove the following statements:a) The standard deviation is zero if all the observations have some constant value.b) The standard deviation does not change by the change of origin.c) The standard deviation is affected by the change of scale.
How do you calculate the standard deviation of the following numbers? 1, 2, 3, 4, 5, 6, 7, 8, 10, 10, 12, 15 If you could do it in a step-by-step basis so I can learn it, that would be great! Thanks! :)
Don’t know how to solve
Evaluate the following = (})' ÷ (})² to None of the above 1/2
7. If you made only n = 1 measurement of rack height, the standard deviation of 41 measurement would be (a) zero, because there is no difference between the value and the average. (b) Equal to the measured value. (c) Undetermined, because you need more measurements to find a standard deviation (d) Infinite because the denominator (n – 1) is zero.
a) The lifetime of a specific species of mammal is normally distributed with mean ?=21 years and standard deviation ?=2 years. (i) Less than 26 years? (ii) Between 20 years and 26 years? (iii) Exactly 67% of the mammal of this species live at most ? years. What is the value of ??
Based on article published in toronto, the total response time (the time it takes gefore the fire fighter shows up for a fire station is given below 4, 8, 10, 5 ,6, 4, 12, 15, 16 ,7 ,6 (a)What is the mean response time. sum(x) = N= mean = (b) What is the standard deviation for the response time sum(x**2)= (sum(x))**2 = standard deviation = (c) use the calculated sample mean and starndard deviation . What is the probability that the response would bre more than 12 mins (round your answer to four decimal places) (d) use the calculated sample and standard deviation , what is the probability that the response time would be more than 6 mins ? (round your answera to 4 decimal places)
68. A manufacturer knows that their items have a normally distributed lifespan, with a mean of 12 years, and standard deviation of 1.4 years. The 4% of items with the shortest lifespan will last less than how many years? (show all work) |
9
Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 130 and 144? does anyone know how to work this using The empirical rule (68-95-99) I know how to do it the other way but not this way, and the empirical rule is the one needed for final

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Iclase freguancy 3 1-10 一1120 21-30 31-40 41-50sI-6061-12 6. 七 ) Moen deuation standard deviation