Answered: Find a z value such that the…

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 probability function for a discrete random variable, Y, is shown below. y P(Y=y) 4 0.4 6 0.2 8 0.2 10 0.2 Show how you would calculate the mean of Y. (You do NOT need to work this out). μ=
Given the following probability distribution for the number of semesters of Math a (non-Math major) college student will take as they earn their degree: x:number of semesters of Math 1 2 3 4 P(x) 0.25 0.45 0.20 0.10 What is the probability that a randomly selected (non-Math major) college student will have taken exactly 3 semesters of Math? Show how you calculated your result here (type in what you typed on your calculator or computer, etc) Calculation: __________ Now type in your final simplified or rounded answer, if necessary round your answer to four decimal places. P(exactly 3 semesters of Math) = _____________
An unfair coin with Pr[H] =0.4 is flipped. If the flip results in a head, a marble is selected at random from a urn containing two red and eight blue marbles. Otherwise, a marble is selected from a different urn containing five red and three blue marbles. If the selected marble selected is red, what is the probability that the flip resulted in a head?
An automated machine in a manufacturing process is operating properly if the length of an important component is normally distributed, with u = 117 cm and o = 5.2 cm. Show your work for the following questions. (i). Find the probability that one randomly selected unit has a length greater than 120 cm. Keep two decimal places. (The answer would be 0.28. You can use the answer for the following questions even though If you cannot figure out how to get it.) (ii). Suppose four units are randomly selected. What is the probability that no more than one unit has a length greater than 120 cm? (iii). Suppose one hundred units are randomly selected. What is the probability that at least twenty units have lengths greater than 120 cm? Use normal approximation for binomial distributions to answer this question. Keep four decimal places. Check if the requirements for normal approximation are met before you do any calculations. The exact value calculated from the binomial distribution is 0.9741. Is…
9. Find the probability of z occurring in the indicated region. J 0 1.75
Claims for a health company insurance are exponentially distributed. An insurance company offers the subscriber two different types of insurance, class A has a coverage of 1.54. For a random loss, with a probability of 0.640. Class B has a coverage of d. with a probability of 0.512. The value of d is:
Fill in the P(X=x)values to give a legitimate probability distribution for the discrete random variable X, whose possible values are −2,1, 3, 4, and 5.
The figure above shows the probability density function for the random variable x. What is P(3≤x<7)?
The profits of a mobile company are normally distributed with Mean of R.O (17x 10) and standarddeviation of R.O (17).a. Find the probability that a randomly selected mobile has a profit greater than R.O ((17x10) +10)
Let us suppose that a particular lecturer manages, with probability 1, to develop exams that have mean 60 and standard deviation 13. The lecturer is teaching two classes, one of size 100 and the other one of size 36, and is about to give an exam to both classes. We treat all students as being independent. Give your answers below in three decimal places. (a) The approximate probability that the average test score in the class of size 100 exceeds 65 is (a), where is the cumulative distribution function of a standard normal random variable. Find the value of a.
I need it asap, please
Find the probabilities or area of P(0<z<1.65).

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Find a z value such that the probability of obtaining a larger z value is only 0.15