PPT-11.7 Standard Deviation SWBAT:

Find the standard deviation and variance of a set of values Apply standard deviation and variance Vocabulary Standard deviation A measure of how far the numbers in a data set deviate from the mean Represented by the Greek letter Sigma . 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. Let’s start with an example. I divided the class into 2 teams, A and B. Coincidentally, the quiz average for team A is the same as team B, 81.5. So we expect a graph of their scores to be about the same, right?. The standard deviation is a measure of how precise the average is, that is, how well the individual numbers agree with each other. It is a measure of a type of error called random error the kind Standard Deviation. . summarizes . the amount . each value . deviates. from . the mean. . . SD. . tells us how . spread out . the data items are in our data set.. If data . is close together, . standard will . Day 1. SWBAT: Create a visual representation of a group of basic principles that they believe humans should live by.. List. Poster. Presentation . Rationale. This activity serves as a pre-reading exercise to focus your reading if preparation of . Objectives:. To calculate and interpret the standard deviation of a data set. To compare the standard deviation of data sets. Warm-up: Complete Problem 1, Questions 1 – 5, on pages 490 – 491.. Use. Do Now-Embargo . Act-1807. England and France seizing our ships, and England is . impressing (. kidnapping our sailors and forcing them in the British navy),,,,How should Jefferson respond to these actions????. Standard Deviation. &. The Bell Curve. Standard Deviation. 1st find the . variance. for a set of data. Variance is the average squared deviation from the mean of a set of data. Computing the Variance . Annette Maxwell and Erica Solis. Office of Compliance and Enforcement . May 5, 2015. Brief discussion of history and scope. Review of compliance documents. Investigation process. Introduction. 1977 Clean Air Act. Do Now. : What forensic evidence can be determined from hair? . Hair is the most frequently found piece of trace evidence.. What is trace evidence?. Objective. : SWBAT identify forensic evidence found in hair samples. . Analyze the spread of data.. 4. 3. 2. 1. 0. In addition to level 3.0 and above and beyond what was taught in class,  the student may:. · Make connection with other concepts in math. · Make connection with other content areas.. Obj. : The student will be able to . . 1) Calculate standard deviation. . 2) Calculate mean deviation. HWK: Worksheet. Vocab: 1) standard deviation – a measure of how spread out the numbers are. Since the averages are the same, can we assume that the students in both classes all did pretty much the same on the exam?. The answer is… No.. The average (mean) does not tell us anything about the distribution or variation in the grades.. Bell Ringer Mensa, the largest high-IQ society, accepts SAT scores as indicating intelligence. Assume that the mean combined SAT score is 1500, with standard deviation 300. Jacinto scored a combined 2070.