Unit 6. Normal Distribution Solution to problems Statistics I. International Group Departamento de Economa Aplicada Universitat de Valncia May 20‚ 2010 Problem 35 Random variable X : weekly ticket sales (units) of a museum. X ∼ N(1000‚ 180) Find the probability of weekly sales exceeding 850 tickets. Find the probability of the interval 1000 to 1200 Take 5 weeks at random. Find the probability of weekly sales not exceeding 850 tickets in more than two weeks Ticket price is 4.5 Euros
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Introduction India’s energy sector is currently confronted with multiple challenges‚ which stem not only from supply-side constraints but also from demand pressures imposed by a buoyant economy and a growing population. As per recent Planning Commission estimates‚ if economic growth is sustained in the 7-8 per cent range‚ the energy demand would rise by at least 5.2 per cent annually. In the face of relatively inflexible supply options‚ the gap between energy requirement and availability
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Act 6 Scene 1 Graveyard Mists and explosions. Enter three WITCHES FIRST WITCH Here rests the body of the brave warrior King Macbeth who stood up until his last breath. SECOND WITCH Oh my demon ! We shall fulfill our destiny and avenge all mankind! THIRD WITCH Get ready you creatures‚ tonight we face the day that we have waited for centuries! Grab my hands and let’s Three witches grab arms and walk around in circles. ALL WITCHES Earth‚ bone and winding sheet ... Let this
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The Darknet and the Future of Content Distribution Peter Biddle‚ Paul England‚ Marcus Peinado‚ and Bryan Willman Microsoft Corporation Abstract We investigate the darknet – a collection of networks and technologies used to share digital content. The darknet is not a separate physical network but an application and protocol layer riding on existing networks. Examples of darknets are peer-to-peer file sharing‚ CD and DVD copying‚ and key or password sharing on email and newsgroups.
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II. STATEMENT OF THE PROBLEM As part of a long-term study of individuals 65 years of age or older‚ sociologists and physicians at the Wentworth Medical Center in upstate New York investigated the relationship between geographic location‚ health status ( healthy or one or more comorbidities)‚ and depression. Random samples of 20 healthy individuals were selected from three geographic locations: Florida‚ New York‚ and North Carolina. Then‚ each was given a standardized test to measure depression
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A STUDY ON DISTRIBUTION CHANNEL AT PEPSICO Submitted in partial fulfillment of the requirement for the award of degree In Post Graduate Diploma in Management Submitted by MD. FARUQUE ANSARI 09/KA/NHLI/PGDM/FT/B/045 Under the guidance of MR. T. SIDDHARTH
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Weston Materials‚ Inc.‚ a national manufacturer of unattached garages‚ reports that it takes two construction workers a mean of 32 hours and a standard deviation of 2 hours to erect the Red Barn model. Assume the assembly times follow the normal distribution. a. Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect? z(29) = (29-32)/2 = -3/2 z(34) = (34-32)/2 = 1 z(32) = 0 P(32 < x < 34) = P(0< z < 1) = 0.34 b. What percent of the
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For the centuries of mankind’s existence‚ there have always been people in the population that are attracted to the same sex. That does not mean‚ however‚ that anybody with these types of feelings in times before ever told other people about it or felt like being open about it. It was looked upon as a burden and a fault‚ even a curse among society. It wasn’t even until the 1900s that any kind of movements for the homosexual community even started. When you sit back and think about the kind of embarrassment
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It is traditional to divide industries into categories according to the degree of competition that exists between the firms within the industry. There are four such categories. At one extreme is perfect competition‚ where there are very many firms competing. Each firm is so small relative to the whole industry that it has no power to influence price. It is a price taker. At the other extreme is monopoly‚ where there is just one firm in the industry‚ and hence no competition from within the industry
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Blaise Pascal (1623-1662) France Pascal was an outstanding genius who studied geometry as a child. At the age of sixteen he stated and proved Pascal’s Theorem‚ a fact relating any six points on any conic section. The Theorem is sometimes called the "Cat’s Cradle" or the "Mystic Hexagram." Pascal followed up this result by showing that each of Apollonius’ famous theorems about conic sections was a corollary of the Mystic Hexagram; along with Gérard Desargues (1591-1661)‚ he was a key pioneer
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