Q1 In a test given to 500 students‚ the average marks was 56 and the standard deviation was 20. Find (i) the number of students exceeding a score of 60. (ii) the number of students having marks between 50 and 70. (iii) the value of marks exceeded by the top 100 students. Answer-------- (i) number of students exceeding a score of 60=210 (ii) The number of students having marks between 50 and 70=188 (iii) The value of marks exceeded by the top 100 students=73 Q2. Following
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Random sample It is often not necessary to survey the entire population. Instead‚ you can select a random sample of people/or firms from the population and survey just them. You can then draw conclusions about how the entire population would respond based on the responses from this randomly selected group of people. This is exactly what political pollsters do - they ask a group of people a list of questions and based on their results‚ they draw conclusions about the population as a whole with
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Course: Professor: Term: Sections: 001: 002: 003: 502: Contact Information: Office Phone Office Location Email OPRE 6301/SYSM 6303 (cross-listed courses) FALL 2012 Carol A. Flannery‚ Ed.D. Fall 2012 Friday Tues/Thurs Wednesday Thursday 4:00 pm to 6:45 pm 11:30 am to 12:45 pm 1:00 pm to 3:45 pm 7:00 pm to 9:45 pm SOM 1.217 SOM 2.106 SOM 1.117 SOM 1.212 972-883-5853 (Answered only during office hours) JSOM 2.416 flannery@utdallas.edu All contact concerning your
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Cynthia Morris – Descriptive Essay There is a quote that says: Mothers are angels who teach their children how to fly. Indeed my mother was an angel who in my younger years I thought was sent here to torture me especially when I wanted to hang out with my friends instead of doing chores or homework. My mother was the pillar of strength‚ love‚ and compassion. Mothers may be misunderstood but that doesn’t mean they don’t care or know better. My earliest memories of my mother‚ was her pretty
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STATISTICS - Lab #6 Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate the mean for the 10 rolls of the die for each student in the class. Label the column next to die10 in the Worksheet with the word mean. Pull up Calc > Row Statistics and select the radio-button corresponding to Mean. For Input variables:
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The other was that nobody has seen anyone come into or come out of the house alive. As I drive down the street I see what appears to be an abandoned house. The house has a very old and dirty appearance. It looks like a house you would see in a movie. Such as "Halloween" or "Friday the 13th" type movies. Some of the windows are broken and others are boarded up. The shutters have pieces and paint chipping off. Not only that‚ I don’t think there is one shutter on the whole place that is straight
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Donato 1 Justin Donato Professor Jessica Catron English II 23 February 2014 Descriptive Essay: First Year at HAA The year was 2010 when my parents decided that it was time for a change. I have not really realized how big that change impacted my life until now. I went to North Shore Seventh Day Adventist Academy for six years. At first‚ I really did not want to switch schools but as I put more and more thought into it‚ I decided that it was the best thing for me to do. This first year at
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Chandell Gabler English 099-22-Intro to College Writing 9:05-10:15 am Professor Braxton-Robinson/Professor Sheffield Assignment: Write a Descriptive Essay describing a storm you have witnessed. The storm I witnessed was Hurricane Sandy. When I first heard of the hurricane I thought it wouldn’t be as bad as some people were prediciting‚ but as the storm approached I certainly changed my mind. As we sat in the house it became very real how bad the storm was going to be. It was scary to
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• Defining What Statistics Really Is 1.1 Nature of Statistics The term “Statistics” came from the Latin word ‘status’ which could be translated as ‘state’. The usage of this term only became popular during the 18 th century where they defined Statistics as “the science of dealing with data about the condition of a state or community”. The practice of statistics could be traced back even from the early biblical times where they gather figures related to governance of the state for they realized
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6.14 Show that for a sample of n = 39‚ the smallest and largest Z values are – 1.96 and + 1.96‚ and the middle (i.e.‚ 20th) Z value is 0.00. 6.19 The data in the file spending represent the per-capita spending‚ in thousands of dollars‚ for each state in 2004. Decide whether the data appear to be approximately normally distributed by A. Comparing data characteristics to theoretical properties. B. Constructing a normal probability plot. 7.1. For a population containing N=902 individuals what code number
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