PPT-Lecture Notes Mean, Variance, and Standard Deviation, and

Unusual Values Ruisheng Zhao OER wwwhelpyourmathcom What is the MEAN How do we find it The mean is the numerical average of the data set and we use the mean to describe the data set with a single value that represents the center of the data Many statistical analyses use the mean as a standard measure of the center of the distribution of the data. We can evaluate the variance of a set of data from the mean that is how far the observations deviate from the mean This deviation can be both positive and negative so we need to square these values to ensure ositive and negative values do not simply ariance The ariance of a set of values which we denote by i de64257ned as where is the mean stands for each data value in turn and is the frequency with which data alue o ccurs Note that An alternative yet equivalent formula which is often easier to Section 3-3. Objectives. Describe data using measures of variation, such as range, variance, and standard deviation. Example: You own a bank and wish to determine which customer waiting line system is . Standard cost is the pre determined cost which determines in advance what each product or service should cost under given circumstances.. MEANING. Determination of Standard cost. Recording Actual Cost. By . Varsha. . Udayakumar. Research in Ecology. Sharp-nosed Sharks. Turtles. Bottle Caps. Sea Cigars. (seed . propagules. ). Coral . Planula. Probability:. . a way to measure the chances that something will occur in relation to the possible alternatives. 2.4. http://. www.youtube.com/watch?v=Rn_OhPKBjB0. Why we need to learn something so we never sound like this. . Range . The simplest measure of variance is the range.. The range of a data set is the difference between the maximum and minimum data entries in the set.. Dr. Halil . İbrahim CEBECİ. Chapter . 06. Continuous. . Probability. . Distributions. a . continuous random variable. . is one that can assume an . uncountable. number of values..  . We cannot list the possible values because there is an infinite number of them.. 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. 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.. The student will summarize, represent, and interpret data on a single count or measurement variable.. Standard Deviation. Modified from: Mathisfun.com. http://www.mathsisfun.com/data/standard-deviation.html. Science Practice 2: The student can use mathematics appropriately. Bozeman Biology . videos: . 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.. 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. 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.