A spinner contains the values 0 up to, but not including, 1. The outcomes of the spinner are equally likely, so the density curveis described by a uniform distribution as shown. Let X = the random number spun on the spinner.Height = 10Random numberFind and interpret P (0.25 ≤ X ≤ 0.85).0.50.70.30.40.6

Given,A random variable X~U(0,1)f(x)=1 ; 0<X<1

Answered: A spinner contains the values 0 up to,…

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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sample (unit: hours): 3.6, 4.8, 4.6, 6.7, 5.4, 5.7, 7.3, 9.4, 8.7, 5.1, 6.3, 4.7 a) assume the population is a gamma distribution, how to use this sample estimate the parameter of the distribution? b) assume the pupulation is a uniform distribution, how to use this sample to estimate the parameter of the distribution?
M MyOpenMath Suppose that the speed at which cars go on the freeway is normally distributed with mean 67 mph and standard deviation 5 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X N( b. If one car is randomly chosen, find the probability that it is traveling more than 66 mph. Sin... c. If one of the cars is randomly chosen, find the probability that it is traveling between 68 and 72 mph. d. 60% of all cars travel at least how fast on the freeway? mph.
K Using the following uniform density curve, answer the question. P(x) 125 ← 2 4 5 6 7 What is the probability that the random variable has a value greater than 5? A. 0.325 B. 0.500 OC. 0.375 OD. 0.250 X
Practice Exercise Determine if the random variable X or Y is discrete or continuous. 1. X = number of points scored in the last season by a randomly selected basketball player in the PBA 2. Y = the height in centimeter of a randomly selected student inside the library 3. X = number of birds in a nest 4. Y = the weights in kg of randomly selected dancers after taking up aerobics 5. Z = the hourly temperatures last Sunday
Let X follow the normal distribution with μ = 100 and σ = 10. Then P(X < 120) is closest to: a. 0.023 b. 0.046 c. 0.430 d. 0.853 e. 0.977
Find the test statistic, t, to test the hypothesis that u, = H,. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below. Round to three decimal places. n= 14 X = 21 n2 = 12 X2 = 22 S1=2.5 $2 = 2.8 A. -0.909 B. - 0.954 C. -1.558 D. -0.915 Click to select your answer. 02/16/21 Ch 2.1 Homework P Type here to search 99+ a Gip 立
A random variable x is best described by a normal distribution with μ = 30 and o =10. Find the z-score that corresponds to the value x = 35. A) 5 B) 0.5 C) 1/6 D) 3.5
I need help with parts D and C only. Let x be a random variable representing dividend yield of bank stocks. We may assume that x has a normal distribution with σ = 2.9%. A random sample of 10 bank stocks gave the following yields (in percents). 5.7 4.8 6.0 4.9 4.0 3.4 6.5 7.1 5.3 6.1 The sample mean is = 5.38%. Suppose that for the entire stock market, the mean dividend yield is μ = 4.1%. Do these data indicate that the dividend yield of all bank stocks is higher than 4.1%? Use α = 0.01. (a) What is the level of significance? (Enter a number.)State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? H0: μ = 4.1%; H1: μ > 4.1%; right-tailedH0: μ = 4.1%; H1: μ < 4.1%; left-tailed H0: μ > 4.1%; H1: μ = 4.1%; right-tailedH0: μ = 4.1%; H1: μ ≠ 4.1%; two-tailed (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. The Student's t, since n is large with…
Let the random variable X follow a normal distribution with u = 70 and o= 49. a. Find the probability that X is greater than 80. b. Find the probability that X is greater than 55 and less than 80. c. Find the probability that X is less than 75. d. The probability is 0.3 that X is greater than what number? e. The probability is 0.07 that X is in the symmetric interval about the mean between which two numbers? Click the icon to view the standard normal table of the cumulative distribution function. ... a. The probability that X is greater than 80 is (Round to four decimal places as needed.)
Consider a t-distribution with 9 degrees of freedom. Find the t-value so that the area to the right of t is 0.285. Question Help: Post to forum Submit Question
Find the test statistic, t, to test the hypothesis that u, u,. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below. Round to three decimal places. n= 11 n2 = 18 X =6.7 X2 = 7.1 S1=0.76 S2 = 0.51 O A. - 1.546 B. -1.821 C. - 2.123 S D. -1.326 eting Click to select your answer. Type here to search hp 立

. The x² distributions take on A) positive B) negative C) positive and negative values. Wu

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