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Histograms Bins are the bars Counts are the heights Relative Frequency Histograms have percents on vertical axis
Stem-Leaf Plot Contain same information as a histogram but also preserve individual data valves.
Dot Plots Places a dot along an axis for each case in the data. Great for small data sets.
Time Plots Dots arranged in data order. Lines connect the dots.
Describing Histograms Center (mean or median) Unusual features (outliers and/or gaps) Shape (Normal? Skewed? Modes?) Spread (range, IQR or SD)
Approximately Normal Distribution
Histogram: Skewed to the right
Skewed to the Left
Skewed to the ?
Outlier with a gap
Chapter Four Making and Describing Graphs of Quantitative Variables Center, Shape. and Spread.
Copyright © 2010 Pearson Education, Inc. Slide Suppose that 30% of the subscribers to a cable television service watch the shopping channel at least.
AP Stat Day Days until AP Exam Describing Data with Numbers Box and Whisker Plots Variance and Standard Deviation.
Dot plots. What is an Individual? Individual: Individuals are the objects described by a set of data. Individuals may be people, but they may also be.
Data and Distribution You will review/learn: ways of organizing discrete data recognize outlier describe distribution of data set.
2007© BOLD Educational Software Descriptive Statistics: Frequency Distributions and Graphic Presentations Note: for more information, print the NOTES PAGES,
Chapter 2: The Normal Distributions Density Curves Normal Distribution Standard Distribution.
Copyright © 2011 Pearson Education, Inc. Statistical Reasoning.
Population vs. Sample Population: A large group of people to which we are interested in generalizing. parameter Sample: A smaller group drawn from a population.
Copyright © 2011 Pearson Education, Inc. Putting Statistics to Work.
Chapter 4 Exploring Numerical Data Objectives Students will be able to: 1)graph the distribution of a numerical variable 2) calculate summary statistics.
Agenda Informationer –Bedst på Nettet –Forslag til eksamensopg. Opsamling fra sidst –Spørgsmålstyper –Svaralternativer –Skalaer –Gruppeopgaven Deskriptiv.
Looking at Data-Distributions 1.1-Displaying Distributions with Graphs.
Describing data Mean Median Mode Range Mean/Average To find the mean or average of a set of data you first : Add the numbers Count the number of data.
1 Study question: distribution of IQ The IQ has an approximately normal distribution, with a mean of 100 and a standard deviation of 15. If 1000 people.
Probability and Statistics Representation of Data Measures of Center for Data Simple Analysis of Data.
AP Statistics Chapter 1 review “Exploring Data”. From which statistic can you recover the total value of the data set, if you know how many entries there.
Sampling Distributions BPS chapter 11 © 2010 W.H. Freeman and Company.
FPP 3-6 Exploratory Data Analysis: One Variable. Plan of attack Distinguish different types of variables Summarize data numerically Summarize data graphically.
Introduction Our daily lives often involve a great deal of data, or numbers in context. It is important to understand how data is found, what it means,
Agenda Informationer –G-mails til Klaus –Brug supplerende litt. –Åben Excel (Opsamling fra sidst) Deskriptiv statistik –Teori –Små øvelser i Excel Videre.
Descriptive Statistics-II Dr Mahmoud Alhussami. Shapes of Distribution A third important property of data – after location and dispersion - is its shape.
Representing and Analyzing Data 3,9,5,2,7,9,6,4,10,1,9, First, before finding the mode, median, range, we should_______________ What is the mode? ______.
Frequency Tables and Single variable Graphics. Listing a large set of data does not present much of a picture to the reader. Sometimes we want to condense.
Graphing in Physics. Graphing A way to display data that is collected in an experiment. They must be constructed accurately so data is understood. Three.
CCGPS Coordinate Algebra UNIT QUESTION: How can I represent, compare, and interpret sets of data? Standard: MCC9-12.S.ID.1-3, 5-9, SP.5 Todays Question:
GRAPHING Parts of graphs, and How to set up graphs.
An Introduction to Further Mathematics Year 12 Further Maths November 2013.
AP Statistics: Section 2.2 C. Example 1: Determine if each of the following is likely to have a Normal distribution (N) or a non-normal distribution (nn).
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