Comparing Distributions Learning Objective To make comparisons between sets of data Learning Outcomes To draw and compare box plots To carry out an investigation.

Slides:

Advertisements

Similar presentations

Statistics 4. Cumulative Frequency and Box Plots

Advertisements

Artrelle Fragher & Robert walker. 1 you look for the median 1 you look for the median 2 then you look for the min and max 2 then you look for the min.

/4/2010 Box and Whisker Plots Objective: Learn how to read and draw box and whisker plots Starter: Order these numbers.

Whiteboardmaths.com © 2004 All rights reserved

Cumulative Frequency A cumulative frequency polygon shows how the cumulative frequency changes as the data values increase. The data is shown on a continuous.

“Teach A Level Maths” Statistics 1

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.

Interpreting data … Drawing and comparing Box and Whisker diagrams (Box plots)

Modal Class Exercise. The masses, in grams, of 100 potatoes are shown in the table below: Mass (m) gramsFrequency 0 < m  < m  < m 

Cumulative Frequency The local council wanted to find out about environmentally friendly transport. A survey of 40 cyclists was conducted to find out the.

GCSE Maths Starter 16 Round to 2 significant figures

Box Plots Example The number of passengers in a 72-seater aeroplane was noted on each of its 20 flights in one day. 48, 54, 72, 21, 37, 45, 72, 41, 59,

Cumulative Frequency Curves. Outcomes… Calculate the cumulative frequency Write down the upper class boundaries Plot the cumulative frequency curve Find.

Cumulative Frequency Curves Cumulative frequency table Cumulative frequency diagrams are used to obtain an estimate of the median, and.

Cumulative Frequency Objectives: B Grade Construct and interpret a cumulative frequency diagram Use a cumulative frequency diagram to estimate the median.

Cumulative frequency Example The frequency table shows the examination marks of 80 students. MarkFrequency

CHAPTER 39 Cumulative Frequency. Cumulative Frequency Tables The cumulative frequency is the running total of the frequency up to the end of each class.

Cumulative Frequency Diagrams & Box Plots

Ζ Dr Frost Cumulative Frequency Graphs.

Average Student. Suggested Lesson Order 1.Give out wordsearch for homework 2.Discuss key words, what data pupils could gather, decide on three questions.

Drawing and comparing Box and Whisker diagrams (Box plots)

Aims: To be able to find the smallest & largest values along with the median, quartiles and IQR To be able to draw a box and whisker plot To be able to.

10. Presenting and analysing data * Averages for discrete data * Stem and leaf diagrams * Using appropriate averages * The quartiles * Measures of spread.

Univariate Data Chapters 1-6. UNIVARIATE DATA Categorical Data Percentages Frequency Distribution, Contingency Table, Relative Frequency Bar Charts (Always.

Data Analysis Qualitative Data Data that when collected is descriptive in nature: Eye colour, Hair colour Quantitative Data Data that when collected is.

Cumulative frequency graphs

Demonstrate knowledge of measures and displays used to compare data sets.

Topic: Data Handling LO: To be able to understand and produce box plots. STARTER PREPARE FOR LEARNING AGREE LEARNING OBJECTIVES Calculate the median of.

CUMULATIVE FREQUENCY CURVES Objectives

Step 1: Find the Cumulative Frequency for each class. < 99.5 <

5,8,12,15,15,18,20,20,20,30,35,40, Drawing a Dot plot.

Cumulative Frequency and Box Plots

Drawing and comparing Box and Whisker diagrams (Box plots)

Cummulative Frequency Plots

Calculating Median and Quartiles

Cumulative Frequency Diagrams

Recapping: Distribution of data.

DS5 CEC Interpreting Sets of Data

Cumulative Frequency Diagrams & Box Plots

Cumulative Frequency Diagrams & Box Plots

Cumulative Frequency and Box Plots.

Cumulative Frequency & Frequency Polygons

In your GNBs find the Median life expectancy for any two continents from the four above. Once you have found this, find the Lower Quartile, Upper Quartile.

Cumulative Frequency Curves

Mathematics Cumulative frequency.

Cumulative Frequency and Box Plots

Using a histogram to estimate the median

Using a histogram to estimate the median

Outliers, Boxplots and O-gives

Unit 7. Day 10..

Unit 7. Day 13..

Inferences to the population

Draw a cumulative frequency table.

Cumulative Frequency and Box Plots.

Cumulative Frequency and Quartiles.

Cumulative Frequency Objectives: level :9 Construct and interpret a cumulative frequency diagram Use a cumulative frequency diagram to estimate the median.

Quartile Activity ($, grades).

Median, Quartiles, Inter-Quartile Range and Box Plots.

Whiteboardmaths.com © 2004 All rights reserved

Whiteboardmaths.com © 2004 All rights reserved

Mathematics (9-1) - iGCSE

Descriptive Statistics

Box and Whisker Plots A.K.A Box Plots.

Whiteboardmaths.com © 2004 All rights reserved

Cumulative Frequency Objectives:

Cumulative Frequency and Box Plots.

Starter Find the medians of these sets of data: 1, 6, 5, 3, 8, 5, 4

Cumulative Frequency and Box Plots

Presentation transcript:

Comparing Distributions Learning Objective To make comparisons between sets of data Learning Outcomes To draw and compare box plots To carry out an investigation into who runs faster on the Wii – boys or girls?

Investigation Who is quicker (boys or girls) when running a 100m sprint on the Wii? BoysTime (s) GirlsTime (s)

Put the results into a frequency table Time (s)Frequency 15 > > > > 353 1) Complete a cumulative frequency table 2) Find Median, LQ, UQ and IQR 3) Draw a box plot 4) Interpret your results