C H A P T E R 6 The Normal Distribution Objectives Outline After completing this chapter‚ you should be able to 1 2 3 Identify distributions as symmetric or skewed. 4 Find probabilities for a normally distributed variable by transforming it into a standard normal variable. Introduction 6–1 Normal Distributions Identify the properties of a normal distribution. Find the area under the standard normal distribution‚ given various z values. 5 Find
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Normal Distribution Normal distribution is a statistics‚ which have been widely applied of all mathematical concepts‚ among large number of statisticians. Abraham de Moivre‚ an 18th century statistician and consultant to gamblers‚ noticed that as the number of events (N) increased‚ the distribution approached‚ forming a very smooth curve. He insisted that a new discovery of a mathematical expression for this curve could lead to an easier way to find solutions to
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El Paso and gradually built a customer base throughout Texas. A distribution center was established in Ft. Worth‚ Texas later‚ as business expanded to the north; a second distribution center was established in Santa Fe‚ New Mexico. The El Paso plant was expanded when the company began marketing its meters in Arizona‚ California‚ Nevada‚ and Utah. With the growth of the West Coast business‚ the Darby Company opened a third distribution center in Las Vegas and just two years ago opened a second production
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The Poisson distribution is a discrete distribution. It is often used as a model for the number of events (such as the number of telephone calls at a business‚ number of customers in waiting lines‚ number of defects in a given surface area‚ airplane arrivals‚ or the number of accidents at an intersection) in a specific time period. It is also useful in ecological studies‚ e.g.‚ to model the number of prairie dogs found in a square mile of prairie. The major difference between Poisson and Binomial
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The planet Mars is the fourth farthest planet from the sun. Mars is very similar to our planet‚ but it also contains some different attributes that make it unique. In the past years‚ Mars has increasingly been in the limelight for astronomers as they continue to study the fascinating qualities of Mars‚ more specifically looking to see if life exists on the planet. Although Mars is very close to Earth‚ there is a great amount of unknown history from the planet. Mars was named by the Romans after
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Assignment Q1Find the parameters of binomial distribution when mean=4 and variance=3. Q2. The output of a production process is 10% defective. What is the probability of selecting exactly two defectives in a sample of 5? Q3. It is observed that 80% of television viewers watch “Boogie-Woogie” Programme. What is the probability that at least 80% of the viewers in a random sample of five watch this Programme? Q4. The normal rate of infection of a certain disease in animals is known to
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Term Paper Insight and Speculation on Getting a Man to Mars Mars has been a fascinating topic of discussion for a long time now. Every aspect of the Red Planet is mysterious when you think about the history of it. It is extremely similar to the Earth in a lot of ways. It experiences seasons just like the Earth due to its tilt. It also has many mountain ranges‚ giving evidence for some plate tectonics‚ but not a lot of evidence. Due to Mars’ very thin atmosphere there is very little air pressure
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I found the concept on frequency distribution using Google and the search words “frequency distribution” at http://www.mathsisfun.com/data/frequency-distribution.html This website is geared towards younger people and therefore breaks down frequency distribution into very basic terms: values and their frequency (how often each value occurs). The website uses the example of a child’s soccer team and how many goals they scored in recent games. For the assignment this week‚ I have chosen to use the
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is to locate evidence of current of past life underground and to test the ability of Mars to sustain life. Using the research conducted in past‚ current‚ and future Mars missions‚ this mission proposes three questions about Mars that correlate to the Mars Exploration Program (MEP) science goals and guide the mission. 1. Is there a possibility that life is inhabiting below the surface of Mars? 2. Does Mars “have fossils‚ which would lead to the assumption of past life or is this process only
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Social Impacts of Human Mars Travel For years‚ many scientists have considered Mars to be the next great frontier for human exploration. Following the successes of unmanned Mars rover missions‚ human travel to Mars is closer and closer to becoming a reality. These rapid advancements create a wide variety of new challenges for astronauts to overcome. When planning a manned mission to Mars‚ it is necessary to consider the social impacts of this situation on the astronauts’ interactions with each
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