A systematic sample of 100 pages was taken from a Concise Oxford Dictionaryand the observed frequency distribution of foreign words per page was found to be the following :1346.No. of foreign words per page :Frequency:4827127411Fit a Poisson distribution. Also compute the variance of the fitted distribution.

The probability mass function (PMF) of the Poisson distribution for a random variable X is: Here, λ…

Answered: A systematic sample of 100 pages was…

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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There are four numbers in a data set. They are 5, 3, 7, and 11. a) What is the ∑∑ x2x2 b) What is the (∑x)2(∑x)2 c) The formula for the population variance, σ2σ2 is ∑x2−(∑x)2nn∑x2-(∑x)2nn Use parts a and b to help calculate the population variance. d. Now get the population standard deviation.
Experience has shown that a grade in MAT 2371 is normally distributed with mean 66 and variance 64. Assume that the grades are independent of each other. What proportion of the class will get a grade of at least 80? 0,5656 0.0401 0.5871 0.9599 0.4129
The average age of trees in a large local park is 60 years with a standard deviation of 2.2 years A simple random sample of 4 trees is selected, and the sample mean age z of these trees is computed. The percentage of trees older than 60.1 years is
The standard deviation of the distribution of sample means would be equal to:
Find the variance from the following sample. (Please round your answers to two decimal places, ex: 1.23) +-----------------------------------+ | X: 2 2 3 5 6 |
The frequency distribution table below is the net weight of a sample of candied fruit products in the food industry cans "ABC": - How many cans have a net weight of less than 20.2 grams. - If we want to compare about the distribution of net weight with the food company "XYZ" for the same type of product. And it is known that the average and variance is 20 grams and 0.04 grams. Which food company has an even distribution of net weight.
Compute inter quartile range and its coefficient and also find variance and S.D for the following dataClassic frequency9.3-9.7 029.8-10.2 0510.3-10.7 1210.8-11.2 1711.3-11.7 1411.8-12.2 0612.3-12.7 0312.8-13.2 01
15) If the variance and mean of heights of trees are (538.24) and (176.2) cm respectively. The coefficient of variation (CV.) is (13.17)%. Select one: False True
In an experiment the sorption was measured for a variety of hazardous organic chloroalkane solvents. The sample measurements were; 1.28, 1.35, 0.57, 1.16, 1.12, 0.91, 0.83, 0.43 Assuming that measurements are normally distributed. i. What is the mean of the sample for sorption of chloroalkane solvents. ii. What is the standard error of the mean for the sample for the organic chloroalkane solvents? iii. What the margin of error of the 90% confidence intervals for the population mean of sorption of chloroalkane solvents. iv. What is the upper limit for the 90% confidence intervals for the population mean of sorption of chloroalkane solvents.
Give a 99.8% confidence interval, for μ₁ −μ₂ given the following information. n₁ = 35, x₁ = 1 2.41, s₁ = 0.39 81 n₂ = 20, x₂ = 2.62, s₂ = 0.83 2 -0.21 ✓0.69 X Use Technology Rounded to 2 decimal places.
The salaries of professional baseball players are heavily skewed right with a mean of $3.2 million and a standard deviation of $2 million. The salaries of professional football players are also heavily skewed right with a mean of $1.9 million and a standard deviation of $1.5 million. A random sample of 40 baseball players’ salaries and 35 football players’ salaries is selected. The mean salary is determined for both samples. Let represent the difference in the mean salaries for baseball and football players. Which of the following represents the shape of the sampling distribution for ? skewed right since the populations are both right skewed skewed right since the differences in salaries cannot be negative approximately Normal since both sample sizes are greater than 30 approximately Normal since the sum of the sample sizes is greater than 30
The salaries of professional baseball players are heavily skewed right with a mean of $3.2 million and a standard deviation of $2 million. The salaries of professional football players are also heavily skewed right with a mean of $1.9 million and a standard deviation of $1.5 million. A random sample of 40 baseball players' salaries and 35 football players' salaries is selected. The mean salary is determined for both samples. Let -T, represent the difference in the mean salaries for baseball and football players. Which of the following represents the standard deviation of the sampling distribution for - -- ? O 0.41 million O 0,57 million Save and Exit Next Submit Mark this and return hp & 4 6. 7 8. 9. y h k

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