A chemical supply company ships a certain solvent in 10-gallon drums. Let X represent thenumber of drums ordered by a randomly chosen customer. Assume X has the followingprobability mass function:4хp(x)0.40.20.20.10.0Find the mean number of drums ordered.a.b.Find the variance of the number of drums ordered.Find the standard deviation of the number of drums ordered.C.d.Let Y be the number of gallons ordered. Find the probability mass function of Y.Find the mean number of gallons ordered.e.f.Find the variance of the number of gallons ordered.Find the standard deviation of the number of gallons ordered.g.

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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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Roll the correct die 100 times. Find: a) the average of the dropped points Enter the exact answer. а) M(X)= b) the variance of the amount of dropped points Enter numbers with a dot separator to one decimal place, for example 121.3. b) D(X)= c) the standard deviation of the sum of the dropped out points. Enter numbers with a dot separator to one decimal place, for example 12.3. c) σ (X) =
Assume that thermometer readings are normally distributed with a mean of 0 degreesC and a standard deviation of 1.00degreesC. A thermometer is randomly selected and tested. For the case below, draw a sketch, and find the probability of the reading. (The given values are in Celsius degrees.) Between 0.50 and 2.00
Assume that we have estimated the standard deviation of a sample x₁,. ., xn ER using the sample standard deviation s = ô(x₁,x2,...,xn). What does ô(−2x1, −2x2,..., -2xn) equal? A: s B: -4s C: 4s D: -2s E: 2s
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading less than -0.24 C. Shade: Left of a value Click and drag the arrows to adjust the values. -3 -2 0. 1. 2 -1.5 0.24 C) P(Z 0.24) P(r< Submit Question prime video hulu
Assume that the probability of a being born with Genetic Condition B is �=17/30. A study looks at a random sample of 286 volunteers.Find the most likely number of the 286 volunteers to have Genetic Condition B.(Round answer to one decimal place.)μ = Let � represent the number of volunteers (out of 286) who have Genetic Condition B. Find the standard deviation for the probability distribution of �.(Round answer to two decimal places.)σ = Use the range rule of thumb to find the minimum usual value μ–2σ and the maximum usual value μ+2σ.Enter answer as an interval using square-brackets only with whole numbers.usual values =
Find the m.g.f of uniform distribution and hence find its mean and variance.
d.Find the correlation coefficient between x and y. Show your calculations.e.Comment on the direction and the strength of the association between x and yf. Find the mean value of (x– y) and the standard deviation of (x – y). Show your calculations.
The discrete random variable X has the probability distribution given by: -1 1 3 P(X=x) 0.2 0.4r 0.2 a. Determine the following probability: P(X=1) = ? Answer in exact fraction or exact decimals b. What is the expected value of the random variable X? c. What is the variance of the random variable X? Answer in exact fraction or exact decimals d. Find the variance of the random variable Y, where Y = 6 – 2X Answer in exact fraction or exact decimals
Assume that the amounts of weight that male college students gain during their freshman year are normally distributed with a mean of μ = 1.1 kg and a standard deviation of a=4.9 kg Complete parts (a) through (c) below. CODE a. If 1 male college student is randomly selected, find the probability that he gains between 0 kg and 3 kg during freshman year. The probability is 2388 (Round to four decimal places as needed.) b. If 16 male college students are randomly selected, find the probability that their mean weight gain during freshman year is between 0 kg and 3 kg The probability is 8663 (Round to four decimal places as needed.)
Kk.340.

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