GCSE Statistics by MrsBrissenden

Tally charts and Frequency Tables

MrsBrissenden — 2015-10-21 14:10:33 UTC

Questionnnaires

neve1 — 2015-10-21 14:25:02 UTC

Sampling

neve1 — 2015-10-21 14:25:57 UTC

MyMaths Types of Data

neve1 — 2015-10-21 14:27:13 UTC

There's a range of lessons in this section which will help you revise.

Revision Guide

neve1 — 2015-10-21 14:28:18 UTC

Chapter 1 Summary

neve1 — 2015-10-21 14:30:16 UTC

Cumulative Frequency Curves - drawing and using to find Median, UQ and LQ

MrsBrissenden — 2015-10-21 14:32:39 UTC

Open and Closed Questions

neve1 — 2015-10-21 14:37:41 UTC

Accuracy of Data

neve1 — 2015-10-21 14:45:16 UTC

Useful notes for your assessment

neve1 — 2015-10-21 14:46:24 UTC

Grouping Discrete Data

MrsBrissenden — 2015-10-21 14:46:35 UTC

Mean from a frequency table

neve1 — 2015-10-21 14:48:00 UTC

Mean of Grouped Data

neve1 — 2015-10-21 14:48:15 UTC

Classes - what they are and how you determine their boundaries

MrsBrissenden — 2015-10-21 14:48:50 UTC

Collecting and Recording Data

neve1 — 2015-10-21 14:50:06 UTC

Two way table practice questions

MrsBrissenden — 2015-10-21 14:50:50 UTC

Two Way Tables

neve1 — 2015-10-21 14:50:53 UTC

Population and Sampling

neve1 — 2015-10-21 14:51:54 UTC

Reading other tables

MrsBrissenden — 2015-10-21 14:52:12 UTC

Primary and Secondary Data

neve1 — 2015-10-21 14:53:58 UTC

neve1 — 2015-10-21 14:54:31 UTC

Surveys

neve1 — 2015-10-21 14:55:38 UTC

Asking the whole population - this is a census.

Asking a sample - this is a questionnaire.

Mileage charts

MrsBrissenden — 2015-10-21 14:56:42 UTC

Reading Train/Bus timetables

MrsBrissenden — 2015-10-21 14:57:44 UTC

Capture-Recapture Method

neve1 — 2015-10-21 14:58:28 UTC

Pictograms

MrsBrissenden — 2015-10-21 14:58:42 UTC

Primary Data Collection Methods

neve1 — 2015-10-21 14:59:26 UTC

Questionnaires, Interviews, Before and After Experiments, Control Groups, Matched Pairs, Data Logging (recording measurements over time, e.g. temperature) , Direct Observation.

Bar Charts

MrsBrissenden — 2015-10-21 14:59:31 UTC

Stem and Leaf Diagrams

MrsBrissenden — 2015-10-21 15:02:02 UTC

CHAPTER 2

MrsBrissenden — 2015-10-21 15:05:49 UTC

CHAPTER 3

MrsBrissenden — 2015-10-21 15:06:02 UTC

CHAPTER 4

MrsBrissenden — 2015-10-21 15:06:13 UTC

CHAPTER 5

MrsBrissenden — 2015-10-21 15:06:23 UTC

CHAPTER 6

MrsBrissenden — 2015-10-21 15:06:35 UTC

CHAPTER 7

MrsBrissenden — 2015-10-21 15:06:45 UTC

CHAPTER 8

MrsBrissenden — 2015-10-21 15:06:52 UTC

Pie Charts

MrsBrissenden — 2015-10-22 08:13:00 UTC

Advantages and disadvantages of each type of diagram

MrsBrissenden — 2015-10-22 08:18:09 UTC

Cumulative Frequency Step Polygons

MrsBrissenden — 2015-10-22 08:19:34 UTC

Comparative Bar Charts

MrsBrissenden — 2015-10-22 08:25:46 UTC

Composite Bar Charts

MrsBrissenden — 2015-10-22 08:34:30 UTC

Correlation

neve1 — 2015-10-22 08:35:09 UTC

Survey

neve1 — 2015-10-22 08:37:04 UTC

Scatter Diagrams

neve1 — 2015-10-22 08:38:59 UTC

Spearman's Rank

neve1 — 2015-10-22 08:41:41 UTC

Comparitive Pie Charts

MrsBrissenden — 2015-10-22 08:43:53 UTC

CHAPTER 1

MrsBrissenden — 2015-10-22 09:24:20 UTC

Association

neve1 — 2015-11-11 10:10:30 UTC

If points lie approximately on a straight line then there is a linear relationship and we say the variables are associated.

Causation

neve1 — 2015-11-11 10:14:16 UTC

If a change in one variable causes a direct change in the other variable - we have a causal relationship.

Line of Best Fit

neve1 — 2015-11-11 10:15:56 UTC

You should always plot the mean point before drawing your line of best fit.

Interpolation and Extrapolation

neve1 — 2015-11-11 10:17:54 UTC

Remember interpolation is always more reliable than extrapolation.

Finding the Gradient of a line of best fit.

neve1 — 2015-11-11 10:21:23 UTC

Equation of a line of best fit.

neve1 — 2015-11-11 10:23:14 UTC

Line of Best Fit

neve1 — 2015-11-11 10:25:36 UTC

You may need to scroll down the page to find the relevant section with an example.

Finding the y-intercept if the graph doesn't go to zero.

neve1 — 2015-11-11 10:36:21 UTC

Non-Linear Models

neve1 — 2015-11-11 10:45:12 UTC

Tied Ranks

neve1 — 2015-11-11 10:46:55 UTC

Summary

neve1 — 2015-11-11 10:50:01 UTC

neve1 — 2015-11-11 10:50:27 UTC

neve1 — 2015-11-11 10:50:54 UTC

neve1 — 2015-11-11 10:51:17 UTC

neve1 — 2015-11-11 10:51:53 UTC

neve1 — 2015-11-11 10:52:07 UTC

neve1 — 2015-11-11 10:52:23 UTC

neve1 — 2015-11-11 10:52:39 UTC

General Rev

MrsBrissenden — 2016-01-08 13:00:38 UTC

General Revision

MrsBrissenden — 2016-01-08 13:00:38 UTC

Pie charts

MrsBrissenden — 2016-04-13 17:32:54 UTC

http://www.bbc.co.uk/schools/gcsebitesize/maths/statistics/representingdata1rev2.shtml

MrsBrissenden — 2016-04-14 08:15:11 UTC

Stem and Leaf Diagram basic Exam style Questions and Answers

MrsBrissenden — 2016-04-14 08:22:20 UTC

http://www.castlefordacademy.com/useful/Grade%20D/27_stem%20and%20leaf.pdf

http://www.mathsgenie.co.uk/resources/49_stem-and-leafans.pdf

Stem and Leaf diagram - how to draw

MrsBrissenden — 2016-04-14 08:24:21 UTC

https://www.youtube.com/watch?v=R0teHrZh7T8

Cumulative Frequency

MrsBrissenden — 2016-04-14 08:25:57 UTC

Cumulative Frequency - This MyMaths lesson describes how to make a CF curve very nicely.

IQR

MrsBrissenden — 2016-04-14 08:27:43 UTC

Interquartile Range - In an exam, u may be asked to compare two sets of data using the IQR, & median etc.

Cumulative Frequency

MrsBrissenden — 2016-04-14 08:32:25 UTC

How to draw a cumulative Frequency diagram

Frequency Polygon

MrsBrissenden — 2016-04-14 08:35:59 UTC

How to draw one!

Frequency polygon comparison

MrsBrissenden — 2016-04-14 08:37:26 UTC

Histograms

MrsBrissenden — 2016-04-14 08:39:34 UTC

Calculating Frequency Density and drawing a histogram

Histograms - finding the median

MrsBrissenden — 2016-04-14 08:40:17 UTC

The shape of a distribution

MrsBrissenden — 2016-04-14 08:43:07 UTC

FYI:
Skewed right = Positive Skew
Skewed left = Negative Skew

Histograms, all styles of questions.

MrsBrissenden — 2016-04-14 08:48:28 UTC

-Drawing a histogram
-Using a histogram to complete the table
-Using the table to complete the histogram

Histograms - comparing

MrsBrissenden — 2016-04-14 08:51:11 UTC

Population pyramids

MrsBrissenden — 2016-04-14 08:51:49 UTC

Using and comparing population pyramids

Chloropleth Maps

MrsBrissenden — 2016-04-14 08:54:16 UTC

Misleading Diagrams

MrsBrissenden — 2016-04-14 09:01:22 UTC

buttery — 2016-04-14 12:05:02 UTC

buttery — 2016-04-14 12:52:25 UTC

Binomial Distribution

neve1 — 2016-04-14 13:01:10 UTC

Normal Distribution

neve1 — 2016-04-14 13:06:09 UTC

Moving Averages

2016-04-14 13:29:35 UTC

Tree

2016-04-14 13:36:08 UTC

Tree Diagrams Quiz

2016-04-14 13:38:22 UTC

Moving Averages

2016-04-14 13:43:21 UTC

Summary , includes explaination of Seasonal Variation

2016-04-14 13:56:13 UTC

Mutually exclusive event

2016-04-14 14:06:54 UTC

Probability Problem

2016-04-14 14:16:08 UTC

Venn Diagrams

2016-04-14 14:20:42 UTC

The OR rule

2016-04-14 14:23:15 UTC

The and rule

2016-04-14 20:06:06 UTC

Chapter 4 Summary

buttery — 2016-04-15 07:15:08 UTC

Mean, median & mode example

buttery — 2016-04-15 07:21:13 UTC

comparing means

buttery — 2016-04-15 07:22:19 UTC

comparing means and medians

buttery — 2016-04-15 07:23:42 UTC

Reading boxplots

buttery — 2016-04-15 07:25:09 UTC

Constructing a box plot

buttery — 2016-04-15 07:26:04 UTC

Measures of spread

buttery — 2016-04-15 07:28:48 UTC

Variance

buttery — 2016-04-15 07:29:24 UTC

Standard Deviation

buttery — 2016-04-15 07:39:29 UTC

Mean & mode

buttery — 2016-04-15 07:41:12 UTC

Median & range

buttery — 2016-04-15 07:42:03 UTC

all averages

buttery — 2016-04-15 07:42:41 UTC

median and mode from frequency table

buttery — 2016-04-15 07:43:24 UTC

mean from frequency

buttery — 2016-04-15 07:44:10 UTC

mean from grouped data 1

buttery — 2016-04-15 07:44:54 UTC

mean from grouped data 2

buttery — 2016-04-15 07:45:14 UTC

Transforming data

buttery — 2016-04-15 07:47:43 UTC

Skew

buttery — 2016-04-15 07:48:37 UTC

Weighted mean

buttery — 2016-04-15 07:49:15 UTC

Index numbers

buttery — 2016-04-15 07:49:43 UTC

Weighted index numbers

buttery — 2016-04-15 07:50:05 UTC

Key terms

buttery — 2016-04-15 08:05:27 UTC

averages summary

buttery — 2016-04-15 08:06:03 UTC

averages crib sheet

buttery — 2016-04-15 08:07:07 UTC

measures of spread summary

buttery — 2016-04-15 08:07:28 UTC

measures of spread crib sheet

buttery — 2016-04-15 08:08:03 UTC

buttery — 2016-04-15 08:16:03 UTC

Chapter 8 Summary

buttery — 2016-04-15 12:04:05 UTC

Uniform distribution

buttery — 2016-04-15 13:54:34 UTC

Normal distribution

buttery — 2016-04-15 13:54:46 UTC

Probability distributions summary & crib sheet

buttery — 2016-05-03 11:38:15 UTC