This website uses cookies to ensure you have the best experience. Learn more

Outline Of Chapter 3: Elementary Statistics: A Brief Version, (A. Bluman 3rd Ed., 2003).

1525 words - 6 pages

Summarize data using measures of central tendency, such as the mean, median, mode, and midrange.Describe data using the measures of variation, such as the range, variance, and standard deviation.Identify the position of a data value in a data set using various measures of position, such as percentiles, deciles, and quartiles.Use the techniques of exploratory data analysis, including boxplots and five-number summaries to discover various aspects of data.Statistical methods can be used to summarize data.Measures of average are also called measures of central tendency and include the mean, median, mode, and midrange.Measures that determine the spread of data values are called measures of variation or measures of dispersion and include the range, variance, and standard deviation.Measures of position tell where a specific data value falls within the data set or its relative position in comparison with other data values.The most common measures of position are percentiles, deciles, and quartiles.The measures of central tendency, variation, and position are part of what is called traditional statistics. This type of data is typically used to confirm conjectures about the data.Another type of statistics is called exploratory data analysis. These techniques include the the box plot and the five-number summary. They can be used to explore data to see what they show.A statistic is a characteristic or measure obtained by using the data values from a sample.A parameter is a characteristic or measure obtained by using all the data values for a specific population.When the data in a data set is ordered it is called a data array.In statistics the basic rounding rule is that when computations are done in the calculation, rounding should not be done until the final answer is calculated.The mean is the sum of the values divided by the total number of values.Rounding rule: the mean should be rounded to one more decimal place than occurs in the raw data.The type of mean that considers an additional factor is called the weighted mean.The Arithmetic Average.The Greek letter (mu) is used to represent the population mean.The symbol ("x-bar") represents the sample mean.Assume that data are obtained from a sample unless otherwise specified.The median is the halfway point in a data set. The symbol for the median is MD.The median is found by arranging the data in order and selecting the middle point.The value that occurs most often in a data set is called the mode.The mode for grouped data, or the class with the highest frequency, is the modal class.The midrange is defined as the sum of the lowest and highest values in the data set divided by 2.The symbol for midrange is MR.One computes the mean by using all the values of the data.The mean varies less than the median or mode when samples are taken from the same population and all three measures are computed for these samples.The mean is used in computing other statistics, such as variance.The mean for the data set is unique,...

Find Another Essay On OUTLINE of Chapter 3: Elementary Statistics: A Brief Version, (A. Bluman 3rd Ed., 2003).

Outline of Chapter 6 text - Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)

1383 words - 6 pages Chapter 6 OutlineIdentify distributions as symmetrical or skewed.Identify the properties of the normal distribution.Find the area under the standard normal distribution, given various z values.Find the probabilities for a normally distributed variable by transforming it into a standard normal variable.Find specific data values for given percentages using the standard normal distribution.Use the central limit theorem to solve problems involving

Outline of Chapter 8 text - Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)

1375 words - 6 pages the statistical test, and reach a conclusion.Hypothesis TestingHypotheses concerning parameters such as means and proportions can be investigated.The z test and the t test are used for hypothesis testing concerning means.Methods to Test HypothesesThe three methods used to test hypotheses are:1. The traditional method.2. The P-value method.3. The confidence interval method.Statement of a HypothesisA statistical hypothesis is a conjecture about a

Outline of Chapter 9 text - Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)

1118 words - 4 pages cannot be negative, because variances are always positive or zero.The distribution is positively skewed.The mean value of F is approximately equal to 1.The F distribution is a family of curves based on the degrees of freedom of the variance of the numerator and the degrees of freedom of the variance of the denominator.FormulaThe F test:where is the larger of the two variances.The F test has two terms for the degrees of freedoms: that of the

My Study Notes from Chapter 1(History, Theory, & Research Strategies) from Development Through the Lifespan, 3rd ed. By: Laura E. Berk. ISBN: 0-205-39157-5

4716 words - 19 pages strategies used to study human behavior & development.         When compared & contrasted, historical philosophies & contemporary theories raise 3 basic questions about what ppl are like & how they develop: Is development a continuous or discontinuous process? Is there one course of development or many? Are genetic or enviromental factors more important in determinging development? Although some theories take extreme positions on these issues

Rewritten version of a chapter in Of Mice And Men

528 words - 3 pages simple life of the negro. Toneless, emotionless and worthless.Returning the terrible protective dignity of the Negro, I drew everything in, having to retire myself into a blank soul was excruciating but I felt the need to protect my remaining dignity. I constantly lost the battle of having authority and respect because I was inferior to white people. I looked at her hopelessly knowing that any second she would explode in rage. "You know what I

A Brief Sumary Chapter by Chapter of The Lotery by Shirley Jackson

699 words - 3 pages with it. 3. "The Lottery" is told in the third-person dramatic point of view, but the narrator changes omniscient and does not give information to the reader that the villagers know. For example, in paragraph 13, the narrator states, "Although Mr. Summers and everyone else in the village knew the answer perfectly well ". This limited use of omniscience from the story. 4. The Delacroix family has a name that means of the cross. Mr. Harry Graves is

My version of the INFERNO! (a version like Dante's inferno)

1732 words - 7 pages men. The island when I arrived was not lushes and green. The outer rink where I landed was a beach with not tan but rather cement color sand. I decided to explore the dried coconut trees that made up the rest of the island. The trees were particularly tall with leaves of brown and no fruit. The ground was rather rocky with large gaps. As I drew closer to the center of the island the light source astonishingly disappeared. It gave me thoughts of

A brief outline of the long and short term risks of ecstasy use

793 words - 3 pages As with all drugs, the best way to avoid problems with ecstasy is simply to not use it. In the past the Australian Drug Foundation has worked from this perspective with campaign slogans like 'Just say no!' However, these messages have not been effective, as people who choose to take drugs will do so no matter what the risk. A new approach has been adopted that focuses on harm minimisation. Harm minimisation attempts to lower the risk of serious

Brief outline of film "billy elliot" with Q&A to director

686 words - 3 pages Year 12 English 2004ASSESMENT TASK: TERM 3MODULE C: TEXTS AND SOCIETY-Billy ElliotThe opening scenes of a film are very important as they introduce the characters and scene to the audience. What do the opening scenes of ' Billy Elliot' reveal to its audience?The opening scenes and titles of the film provide a lot of information and many indications of what is to come. The opening shot of hands shows fingers that tremble with anticipation while

"A Wrinkle In Time" Chapter 3 Note

553 words - 3 pages Mrs. WhichMeg, Charles Wallace and Calvin return to the Murry home for supper. Calvin calls his mother, even though he thinks his family does not care about him. He likes the Murry family and house, and when he sees a picture of Meg's father he asks where he is. Meg doesn't want to answer, and Mrs. Murry gets Meg to help Calvin with his math homework. Calvin is surprised at how smart Meg is. He is happy to have met Meg and her family.After

Chapter 3: A Culture-full Mutt

641 words - 3 pages that can get her anything she wants. A kid after my own heart really. I think she's observed me well, which can be very useful, but very dangerous. The twins were staring at each other, mentally communicating, then laughing out loud."Cut it out, you two." Dad says and at once they stop and look at something else to keep from laughing some more. Secretly I know Dad finds all of our antics funny, but rarely laughs to show he thinks you're

Similar Essays

Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003): Outline Of Chapter 1

634 words - 3 pages OUTLINE of Chapter 1Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)Demonstrate knowledge of statistical terms.Differentiate between the two branches of statistics.Identify types of data.Identify the measurement level for each variable.Identify the four basic sampling techniques.Explain the difference between an observational and an experimental study.Explain how statistics can be used and misused.Explain the importance of

Outline Of Chapter 7 Text Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)

815 words - 3 pages Chapter 7 Outline Objectives Find the confidence interval for the mean when s is known or n > 30. Determine the minimum sample size for finding a confidence interval for the mean. Find the confidence interval for the mean when s is unknown and n < 30. Objectives (cont'd.) Find the confidence interval for a proportion. Determine the minimum sample size for finding a confidence interval for a proportion. Find a confidence interval for a variance

Outline Of Chapter 5 Text Elementary Statistics: A Brief Version(A. Bluman 3rd Ed., 2003)

567 words - 2 pages Chapter 5 OutlineObjectivesConstruct a probability distribution for a random variable.Find the mean, variance, and expected value for a discrete random variable.Find the exact probability for X successes in n trials of a binomial experiment.Objectives (cont'd.)Find the mean, variance, and standard deviation for the variable of a binomial distribution.Find probabilities for outcomes of variables using the Poisson, hypergeometric, and multinomial

Outline Of Chapter 4 Text Elementary Statistics: A Brief Version (A. Bluman 3rd Ed., 2003)

1209 words - 5 pages Chapter 4 OutlineDetermine sample spaces and find the probability of an event using classical probability or empirical probability.Find the probability of compound events using the addition rules.Find the probability of compound events using the multiplication rules.Find the conditional probability of an event.Determine the number of outcomes of a sequence of events using a tree diagram.Find the total number of outcomes in a sequence of events