PPT-Module 7 Percent Area and the Normal Curve

What it is History Uses 1 Normal Curve Characteristics Inflection points at and 1 SD Where slopes changes from down to out Axes X axis abscissa Scores as usual Y axis ordinate . http. ://www.youtube.com/watch?v=xDIyAOBa_yU. The Standard Normal Distribution. 1. Notice that the x axis is . standard scores. ,. also called . z scores. .. This means that the distribution has a . Normal distributions show up all over the place.. The standard normal distribution. The standard normal distribution is a . continuous distribution.. It has a mean of 0 and a standard deviation of 1. Explaining the Normal Distribution. Preliminaries: How to describe data. Discussion Question: How do we describe data in Statistics?. In this course, the way we describe data is by using the C.U.S.S. Method. We look at these characteristics:. Click the mouse button or press the Space Bar to display the answers.. Statistics are from ______ and parameters are from ________. In a uniform distribution everything is ______ likely.. If a distribution is skewed right, which is greater, the mean or the median and why?. 2.1 Density Curves and the Normal Distribution. Differentiate . between a density curve and a . histogram. Understand . where mean and median lie on curves that are symmetric, skewed . right, and . skewed left. 2.1 Density Curves and the Normal Distributions. 2.2 Standard Normal Calculations. 2. Histogram for Strength of Yarn Bobbins. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. X. Bobbin #1: 17.15 g/tex. Probability Distribution. Imagine that you rolled a pair of dice. What is the probability of 5-1. ?. To answer such questions, we need to compute the whole population for possible results of rolling two dices. . z. Scores. Chapter 6. The . Bell . Curve is Born (1769). A Modern Normal Curve. Development of a Normal Curve: Sample of 5. Development of a Normal Curve: Sample of 30. Development of a Normal Curve: Sample of 140. Section 2.2. Normal Distributions. After this section, you should be able to…. DESCRIBE and APPLY the 68-95-99.7 Rule. DESCRIBE the standard Normal Distribution. PERFORM Normal distribution calculations. What it is. History. Uses. 1. Normal Curve Characteristics. Inflection points (at and – 1 SD). Where slopes changes from down to out.. Axes . X –axis (abscissa) =Scores (as usual). Y –axis (ordinate) = . Review Bell Ringer. Section 3.1. Section 3.2. Figure 3.1 is a histogram of the scores of all 947 seventh-grade students in Gary, Indiana, on the vocabulary part of the Iowa Tests of Basic Skills.1 Scores of many students on this national test have a quite regular distribution. The histogram is symmetric, and both tails fall off smoothly from a single center peak. There are no large gaps or obvious outliers. The smooth curve drawn through the tops of the histogram bars in Figure 3.1 is a good description of the overall pattern of the data.. IB Mathematical Studies Standard Level: For the IB diploma (International Baccalaureate).   by Peter Blythe, Jim . Fensom. , Jane Forrest and Paula Waldman De . Tokman. (26 Jul 2012). . Information from this book has been used in this PowerPoint.. Dehaish. Outlines. Normal distribution. Standard normal distribution . Find probability when known z score . Find z score from known areas . Conversion to Standard normal distribution.. Sampling distribution of sample mean . The Normal Curve. Notation. σ. = Population SD. S = Sample SD. µ = Population Mean. x̄ = Sample Mean. The Normal Curve. An individual has a score of . 26. on a leadership test.. Is that person a particularly good leader?.