Think Stats: Probability and Statistics for Programmers Version 1.6.0 Think Stats Probability and Statistics for Programmers Version 1.6.0 Allen B. Downey Green Tea Press Needham‚ Massachusetts Copyright © 2011 Allen B. Downey. Green Tea Press 9 Washburn Ave Needham MA 02492 Permission is granted to copy‚ distribute‚ and/or modify this document under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported License‚ which is available at http://creativecommons
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Chapter 5 Measures of Central Tendency: Introduction A measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data. As such‚ measures of central tendency are sometimes called measures of central location. They are also classed as summary statistics. The mean (often called the average) is most likely the measure of central tendency that you are most familiar with‚ but there are others‚ such as the median and the
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MATHEMATICS SL INTERNAL ASSESSMENT TYPE 1 LACSAP’S FRACTIONS 10/11/2012 Tracy Braganza IB2T In mathematics‚ Lacsap’s fractions are based upon Pascal’s triangle. In this portfolio‚ the aim that was given was to consider a set of numbers that are presented in a symmetrical pattern‚ deduce a general statement and also to determine the limitations of the general statement that have been found. The answers in this portfolio will be attained with the help of a GDC calculator (GDC – TI84 Plus
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Week 5 - Discussion 1 This Discussion will give you the opportunity to calculate or identify the three measures of central tendency. You will be asked to select an appropriate real life situation in which one measure would be more appropriate than the other two measures of center. 1. Select a topic of interest to you and record the topic in your posting‚ for example: “What is the average number of hours people watch TV every week?” Make sure the question you ask will be answered with a number‚
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Kelly Panizza Assignment # 1 Algorithm-Spring 2011 1. Do some research on al-Khorezmi (also al-Khwarizmi)‚ the man from whose name the word “algorithm” is derived. In particular‚ you should learn what the origins of the words “algorithm” and “algebra” have in common. R: / the word “Algorithm” or “Algorism” in some other writing versions‚ comes from the name Al-Khwarizmi (c. 780-850)‚ a Persian mathematician‚ astronomer‚ geographer
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Write your name here Surname Other names Centre Number Candidate Number Edexcel GCSE Mathematics B Unit 1: Statistics and Probability (Calculator) Higher Tier Wednesday 9 November 2011 – Afternoon Time: 1 hour 15 minutes Paper Reference 5MB1H/01 You must have: Ruler graduated in centimetres and millimetres‚ Total Marks protractor‚ pair of compasses‚ pen‚ HB pencil‚ eraser‚ calculator. Tracing paper may be used. Instructions Use black ink or ball-point pen.
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1. Arrange the following in descending order: a. 29 ‚23 ‚821 b. 15 ‚37 ‚710 2. A rectangular sheet of paper is 1212 cm long and 1023 cm wide. Find its perimeter. 3. Salil wants to put a picture in a frame. The picture is 735 cm wide. To fit in the frame the picture cannot be more than 7310 cm wide. How much the picture should be trimmed? 4. Find the perimeters of (i) ABE (ii) the rectangle BCDE in the figure below. Whose perimeter is greater? 5. In
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Chapter 3 Relationships Between Quantitative Variables Copyright ©2011 Brooks/Cole‚ Cengage Learning 1 Principle Idea: The description and confirmation of relationships between variables are very important in research. Copyright ©2011 Brooks/Cole‚ Cengage Learning 2 Three Tools we will use … • Scatterplot‚ a two-dimensional graph of data values • Correlation‚ a statistic that measures the strength and direction of a linear relationship between two quantitative variables
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America‚ I have a confession to make: I don’t drink Coke. But don’t call me a hypocrite just because I am still the proud owner of a bright red shirt that advertises it. Just call me an American. Even before setting foot in Israel three years ago‚ I knew exactly where I could find one. The tiny T-shirt shop in the central block of Jerusalem’s Ben Yehuda Street did offer other designs‚ but the one with a bright white “Drink Coca-Cola Classic” written in Hebrew cursive across the chest
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What is Alkaline Water? Alkaline water‚ also commonly known as ionized water‚ is water that has a pH level greater than seven. This water is generally produced with the aid of a faucet-based water ionizer‚ or "alkalizer" and features a number of health benefits. Making Alkaline Water These are some of the possible sources of alkaline water: * Lemon (& Lime) Water * pH Drops * Alkalising Powder * Mainstream Water Filters * Water Distillers * Reverse Osmosis * Alkaline
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