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1 Press Ctrl-A ©G Dear 2010 – Not to be sold/Free to use Range and IQR With Stem-and-Leaf Stage 6 - Year 11$ Applied Mathematic (Preliminary General 1)
2 Interquartile Range = Q3 – Q1 End of Slide Stem Leaf First find median. There are 27 scores. Median = 14 th score. (The middle score.) Median = 32.
3 Interquartile Range = Q3 – Q1 End of Slide Stem Leaf Now find Q1. There are 13 scores in the lower half. Q1 = 7 th score. (The middle score.) Q1 =
4 Interquartile Range = Q3 – Q1 End of Slide Stem Leaf Next find Q3. There are 13 scores in the upper half. Q3 = (14+7) st score. (The middle score.) Q3 = st score
5 Interquartile Range = Q3 – Q1 End of Slide Stem Leaf IQR = = 29 Range =52- 1 = 51
6 Interquartile Range = Q3 – Q1 End of Show Stem Leaf = (21+23)÷2 = 22 Q1 = = 9 Q3 = = 34 IQR = = 25 = 52= 49 Median = Range = - 3
1 InterquartileRange Press Ctrl-A G Dear ©2010 – Not to be sold/Free to use Stage 4 Year 9.
1 Press Ctrl-A ©G Dear2009 – Not to be sold/Free to use Measures of Spread Stage 6 - Year 12 General Mathematic (HSC)
Stem and Leaf Bingo. Pick 8 from the list
Quantitative data. mean median mode range average add all of the numbers and divide by the number of numbers you have the middle number when the numbers.
Quartiles & Extremes (displayed in a Box-and-Whisker Plot) Lower Extreme Lower Quartile Median Upper Quartile Upper Extreme Back.
© Boardworks Ltd of 7 This icon indicates the slide contains activities created in Flash. These activities are not editable. For more detailed instructions,
Box Plots March 20, th grade. What is a box plot? Box plots are used to represent data that is measured and divided into four equal parts. These.
BOX PLOTS/QUARTILES. QUARTILES: 3 points in a set of data that separate the set into 4 equal parts. Lower Quartile: Q1 (The median for the lower half.
Stem and leaf diagrams. Example - drawing a stem and leaf Answer (a):- (1) key: 4|7 means 47 (2) put values into preliminary diagram: Question:- 29 students.
Measures of Spread. How to find Quartiles Interquartile Range (IQR) The difference between the third and first quartiles of a data set.
Ch part 2 Review of Ch. 2: Data - stem and leaf, dotplots,… Summary of Ch. 3: Averages, standard deviation 5 number summaries Empirical Rule Z scores.
Review of Statistics. Mean, Median, Mode and Range Mean – The sum of the data divided by the number of items in the data set. Median – The middle number.
Warm-Up Define mean, median, mode, and range in your own words. Be ready to discuss.
1 Further Maths Chapter 2 Summarising Numerical Data.
Ex1E median, the interquartile range, the range and the mode.
Sample Box-and-Whisker Plot lower extreme, or minimum value 1st quartile, the median of the lower half of the data set 2nd quartile, the median of the.
Box Plot A plot showing the minimum, maximum, first quartile, median, and third quartile of a data set; the middle 50% of the data is indicated by a box.
Stem and Leaf Plot Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use Stage 4 Years 7 & 8.
11.5 – Measures of Central Tendency and Variation – Day 1.
1 Press Ctrl-A ©G Dear2009 – Not to be sold/Free to use Comparison of Data Sets Stage 6 - Year 12 General Mathematic (HSC)
Making a Box & Whiskers Plot Give Me Five!. 5 Numbers are Needed 1) Lowest: Least number of the data set 2) Lower Quartile : The median of the lower half.
To find the mean: 1. ____________ all values. 2. ____________ by the number of values. To find the median: 1. Put numbers in ____________ from least to.
1 Press Ctrl-A ©G Dear 2010 – Not to be sold/Free to use Sum & Differences of angles Stage 6 - Year 11 Mathematic Extension 1 (Preliminary)
Cumulative Frequency Diagrams & Box Plots OCR Stage 8.
Measures of Central Tendancy Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use Stage 4 Years 7 & 8.
Section 6.8 Compare Statistics from Samples. Vocabulary Quartile: The median of an ordered data set Upper Quartile: The median of the upper half of an.
1 Press Ctrl-A ©G Dear 2009 – Not to be sold/Free to use StandardDeviation Stage 6 - Year 12 Applied Mathematics Preliminary.
6-9 Data Distributions Objective Create and interpret box-and-whisker plots.
10. Presenting and analysing data * Averages for discrete data * Stem and leaf diagrams * Using appropriate averages * The quartiles * Measures of spread.
Measures of Variation For Example: The 11 Workers at a company have the following ages: 27, 39, 40, 22, 19, 25, 41, 58, 53, 49, 51 Order data from least.
What is a box-and-whisker plot? 5-number summary Quartile 1 st, 2 nd, and 3 rd quartiles Interquartile Range Outliers.
1 Press Ctrl-A ©G Dear2009 – Not to be sold/Free to use Displaying Multiple Data Sets Stage 6 - Year 12 General Mathematic (HSC)
Section 6 – Mean, Median, Mode and Range with Box and Whisker & Stem and Leaf Plots.
Statistics Vocab Notes Unit 4. Mean The average value of a data set, found by adding all values and dividing by the number of data points Example: 5 +
Cumulative Frequency Curves. Outcomes… Calculate the cumulative frequency Write down the upper class boundaries Plot the cumulative frequency curve Find.
Variability and Box-and-Whisker Plots 10-4 Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes.
Unit 3: Averages and Variations Week 6 Ms. Sanchez.
Unit 4: Probability Day 4: Measures of Central Tendency and Box and Whisker Plots.
In this chapter, we will look at some charts and graphs used to summarize quantitative data. We will also look at numerical analysis of such data.
Box 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.
Box and Whisker Plot 5 Number Summary for Odd Numbered Data Sets.
Starter List 5 types of continuous data List 3 types of discrete data Find the median of the following numbers: 2, 3, 6, 5, 7, 7, 3, 1, 2, 5, 4 Why is.
1 Press Ctrl-A ©G Dear 2008 – Not to be sold/Free to use Relative Error Stage 6 - Year 11 General Mathematics Preliminary.
WE HAVE BEEN LOOKING AT: Univariate data: Collecting sets of data and analysing it to see the results Ungrouped data set: a list of individual results.
Additional Measures of Center and Spread Math Alliance Fall 2011.
To graph and interpret Box-and-Whisker Plots 9/17/13 Do Now: Order the set of numbers from least to greatest, then find the median.
Section 6.7 Box-and-Whisker Plots Objective: Students will be able to draw, read, and interpret a box-and- whisker plot.
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