Cumulative Frequency and Box Plots. Learning Objectives. To be able to draw a cumulative frequency curve and use it to estimate the median and interquartile range and draw a box plot. Does anybody remember how to draw a Cumulative Frequency Diagram?. Cumulative Frequency Curves

By12.3 – Measures of Dispersion. Dispersion is another analytical method to study data. . A main use of dispersion is to compare the amounts of spread in two (or more) data sets. .

BySection 3.3. Measures of Relative Position. Topics. Determine the percentiles, quartiles, and five-number summary of a data set. Construct a box plot. Percentiles. Location of Data Value for the P th Percentile

ByDescriptive Statistics II: Measures of Dispersion. How typical is ‘typical’?. Mean, Median and Mode are measures designed to convey to the reader the “typical” observation. Often useful for the reader to know just how typical the “typical” observation is!

ByBox-and-Whisker Plots. Your gonna loves this! Isnt the kitty cute?. Step 1 – Order Numbers. 1. Order the set of numbers from least to greatest. Step 2 – Find the Median.

ByQuartiles. What are they?. What is a Quartile?. There are 3 types of Quartiles: The Quartile The Upper Quartile The Lower Quartile A Quartile is the median of an ordered data set. The Upper Quartile is the median of the upper (higher) half of the data set.

ByGrouped Data Calculation. Mean, Median and Mode First Quantile, third Quantile and Interquantile Range. Measure of the Central Tendency. Mean – Grouped Data.

ByBox and Whisker. Algebra I. Basic Vocabulary. Mean – sum of data divided by the total number of data. Median – the middle number of a set of data in numerical order. Mode – the most occurring number in a set of data.

By12 – 4 Box & Whisker Plots. Objective; Make and interpret box& whisker plots and find quartiles and percentiles. Quartiles are values that divide a data set into four parts. Median (Second Quartile) separates the upper and lower halves.

ByBox and Whisker Plots and Quartiles. Sixth Grade. Five Statistical Summary. When describing a set of data we have seen that we can use measures such as mean and median. We can also get a sense of the data’s distribution by examining a five statistical summary.

ByIntro to Numerical Descriptions of Quantitative Data. 8/31/11. Different Quantitative Data Types. Discrete Data result when the number of possible values is either finite or countable.

ByUnit 8: Day 3 Box and Whisker Plots. Ms. Hall. Too bad this is not a box and whisker plot, but it is a great way to remember it!. What’s the big deal about it?.

ByMeasures of Position. 3.4. The standard deviation is a measure of dispersion that uses the same dimensions as the data (remember the empirical rule) The distance of a data value from the mean, calculated as the number of standard deviations, would be a useful measurement

ByQuartiles of Data. AS maths 2011. Find the mean, median, range and interquartile range for the following data sets. 1. 2 .

ByDot Plots. A dot plot is a type of graphical display used to compare frequency counts within categories or groups. Dot Plots. Dot Plots - Symmetry. A symmetric distribution can be divided at the centre so that each half is a mirror image of the other. Dot Plots - Skewness.

ByDescribing Distributions with Numbers: Center. The Mean (average). Median. The median is the midpoint of a distribution. Half of the numbers are larger and half of he numbers are smaller. (n + 1)/2. Calculate the mean and median for each data set. 2, 2, 2, 2, 2, 2, 2, 2, 2.

ByChapter 2 . Density Curves and Normal Distributions. Remember. ALWAYS plot data (usually histogram or stemplot ) Overall Pattern (CUSS) Calculate Numerical Summary NEW – Sometimes overall pattern is so regular it can be described by a smooth curve (called a density curve) fig 2.2 pg78.

ByBox Plots. Very useful graphical descriptive statistic Gives a clear picture of the data without using parametric statistics (such as the mean and standard deviation) Can tell if the data is skewed Outliers are obvious

ByThe 8-Step Continuous Improvement Model. Presented by Kathryn Carr-LeRoy, Division of Mathematics and Science Education. The 8-Step Continuous Improvement Model. BRAZOSPORT READING SCORES. 98. 97. 94. 94. 92. 82. 70. 64. 60. 57. Why the 8–Step Continuous Improvement Model?.

By12.4 – Measures of Position. In some cases, the analysis of certain individual items in the data set is of more interest rather than the entire set.

ByView Quartiles PowerPoint (PPT) presentations online in SlideServe. SlideServe has a very huge collection of Quartiles PowerPoint presentations. You can view or download Quartiles presentations for your school assignment or business presentation. Browse for the presentations on every topic that you want.