Where the world population is distributed? Key issue 1 -we can understand how population is distributed by identifying two basic properties. 1. Concentration 2. Density Population concentrations -two thirds of the world’s population is clustered in 4 regions: East Asia‚ South Asia‚ Southeast Asia‚ and Western Europe. - The clustering of the world’s population can be displayed on a cartogram‚ which despites a countries size according to its population not its land area. Major population
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PROBABILITY AND STATISTICS APPLIED PROBABILITY AND STATISTICS DEPARTMENT OF COMPUTER SCIENCE DEPARTMENT OF COMPUTER SCIENCE STATISTICAL DISTRIBUTION STATISTICAL DISTRIBUTION SUBMITTED BY – PREETISH MISHRA (11BCE0386) NUPUR KHANNA (11BCE0254) SUBMITTED BY – PREETISH MISHRA (11BCE0386) NUPUR KHANNA (11BCE0254) SUBMITTED TO – PROFESSOR SUJATHA V. SUBMITTED TO – PROFESSOR SUJATHA V. ACKNOWLEDGEMENT
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INTRODUCTION TO NORMAL DISTRIBUTIONS The normal distribution is the most important and most widely used distribution in statistics. It is sometimes called the "bell curve‚" although the tonal qualities of such a bell would be less than pleasing. It is also called the "Gaussian curve" after the mathematician Karl Friedrich Gauss. As you will see in the section on the history of the normal distribution‚ although Gauss played an important role in its history‚ Abraham de Moivre first discovered the
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but ideally it should be pretty close to ‘right’‚ perhaps within some specified range of the parameter • We can define this in terms of our statistic falling within some interval of values around the parameter value (as determined by our sampling distribution) • But how close is close enough? Estimation and Confidence • We can ask this question more formally: • (1) How confident can we be that a statistic falls within a certain distance of a parameter • (2) What is the probability that the parameter
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and Statistics = PS Strand 1: Introduction to Statistics. Strand 2: Organizing Data. Strand 3 : Averages and Variation Strand 4: Elementary Probability Theory. Strand 5: The Binomial Probability Distribution and Related Topics. Strand 6: Normal Distributions. Strand 7: Introduction to Sample Distributions. Benchmark Code Subject (M‚ S‚ SS‚ LA).Grade#.Strand#.Standard#. Benchmark# Example: PS.1.4.3 – Probability and Statistics‚ Strand 1‚ Standard 4‚ Benchmark 3 Strand: 1 INTRODUCTION TO STATISTICS
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the a. mean. b. median. c. geometric mean. d. mode. a 4. What level of measurement is required to determine the mode? a. at least nominal level b. at least ordinal c. at least interval level d. ratio d 5. For a symmetric distribution a. the mean is larger than the median. b. the mode is the largest value. c. the mean is smaller than the median. d. the mean and median are equal. b 6. Which of the following is not true about the arithmetic mean. a. all the values
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with the essential skills to identify and apply appropriate techniques to solve problems. Students will be exposed to concepts such as sampling techniques‚ graphical presentations‚ statistical measures‚ counting rules and classical probability distribution. Learning Outcomes of the Course On completion of the module‚ students should be able to ILO1. distinguish between population and sample; apply the different sampling techniques to select a sample; ILO2. compute central tendency measures as the
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fraction of the total number of items in several classes is a a. frequency distribution b. relative frequency distribution c. frequency d. cumulative frequency distribution Answer: b 9. If several frequency distributions are constructed from the same data set‚ the distribution with the widest class width will have the a. fewest classes b. most classes c. same number of classes as the other distributions since all are constructed from the same data Answer: a 11. The
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Table and Charts for Categorical Data – Graphing (Bar charts and pie charts)‚ Summary table * Bar and Pie Charts – used for qualitative data * Tables and Charts for Numerical Data – Ordered Array (Stem-and-leaf plot)‚ Frequency Distributions Cumulative Distributions (Histogram‚ Polygon‚ Ogive) * Ordered Array
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Name: ___________________________________ Date:_____________ Period: _______________ 1. Where on the normal curve are the inflection points located? Where the slope starts to drop off at. 2. What is the standard normal distribution? A standard Normal distribution is a Normal curve with a mean of 0 and a standard deviation of 1. 3. What information does the standard normal table give? The area that falls to the left of the given z-score. 4. How do you use the standard normal table (Table
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