Answered: Chu (2003) studied the number of goals…

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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Question

Chu (2003) studied the number of goals scored during the 232 World Cup soccer games played from 1990 to 2002 and found them to be well modeled by the Poisson distribution. Only goals scored during the 90 minutes of regulation play were considered. The average number of goals scored each game was 2.5. Assuming that this mean continues to hold for other World Cup games, find the probabilities associated with the following events.

a. At least six goals are scored during the 90 minutes of regulation play in a randomly selected game during the nextWorld Cup.

b. No goals are scored during the 90 minutes of regulations play in a randomly selected game during the nextWorld Cup.

c) Plot the probability distribution with n=10.

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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