Maths Gcse Wjec-Eduqas Higher
-
Scatter-Graphs-And-Correlation Wjec-Eduqas Higher2 主题
-
Cumulative-Frequency-And-Box-Plots Wjec-Eduqas Higher4 主题
-
Histograms Wjec-Eduqas Higher3 主题
-
Statistical-Diagrams- Wjec-Eduqas Higher6 主题
-
Averages-Ranges-And-Data Wjec-Eduqas Higher8 主题
-
Questionnaires Wjec-Eduqas Higher
-
Population-And-Sampling Wjec-Eduqas Higher
-
Comparing-Data-Sets Wjec-Eduqas Higher
-
Range-And-Interquartile-Range Wjec-Eduqas Higher
-
Averages-From-Grouped-Data Wjec-Eduqas Higher
-
Averages-From-Tables- Wjec-Eduqas Higher
-
Calculations-With-The-Mean Wjec-Eduqas Higher
-
Mean-Median-And-Mode Wjec-Eduqas Higher
-
Questionnaires Wjec-Eduqas Higher
-
Combined-And-Conditional-Probability Wjec-Eduqas Higher3 主题
-
Tree-Diagrams- Wjec-Eduqas Higher1 主题
-
Simple-Probability-Diagrams- Wjec-Eduqas Higher3 主题
-
Introduction-To-Probability Wjec-Eduqas Higher3 主题
-
Transformations Wjec-Eduqas Higher5 主题
-
Vectors Wjec-Eduqas Higher6 主题
-
3D-Pythagoras-And-Trigonometry Wjec-Eduqas Higher1 主题
-
Sine-Cosine-Rule-And-Area-Of-Triangles- Wjec-Eduqas Higher4 主题
-
Pythagoras-And-Trigonometry Wjec-Eduqas Higher4 主题
-
Area-And-Volume-Of-Similar-Shapes Wjec-Eduqas Higher1 主题
-
Congruence-Similarity-And-Geometrical-Proof Wjec-Eduqas Higher5 主题
-
Volume-And-Surface-Area- Wjec-Eduqas Higher3 主题
-
Circles-Arcs-And-Sectors- Wjec-Eduqas Higher2 主题
-
Area-And-Perimeter- Wjec-Eduqas Higher4 主题
-
Circle-Theorems Wjec-Eduqas Higher7 主题
-
Circle-Theorem-Proofs Wjec-Eduqas Higher
-
The-Alternate-Segment-Theorem Wjec-Eduqas Higher
-
Angles-In-The-Same-Segment Wjec-Eduqas Higher
-
Angles-In-Cyclic-Quadrilaterals Wjec-Eduqas Higher
-
Theorems-With-Chords-And-Tangents Wjec-Eduqas Higher
-
Angle-In-A-Semicircle Wjec-Eduqas Higher
-
Angles-At-Centre-And-Circumference Wjec-Eduqas Higher
-
Circle-Theorem-Proofs Wjec-Eduqas Higher
-
Bearings-Scale-Drawing-Constructions-And-Loci Wjec-Eduqas Higher5 主题
-
Angles-In-Polygons-And-Parallel-Lines Wjec-Eduqas Higher3 主题
-
Symmetry-And-Shapes Wjec-Eduqas Higher6 主题
-
Exchange-Rates-And-Best-Buys Wjec-Eduqas Higher2 主题
-
Standard-And-Compound-Units- Wjec-Eduqas Higher5 主题
-
Direct-And-Inverse-Proportion- Wjec-Eduqas Higher2 主题
-
Problem-Solving-With-Ratios Wjec-Eduqas Higher2 主题
-
Ratios Wjec-Eduqas Higher3 主题
-
Sequences Wjec-Eduqas Higher4 主题
-
Transformations-Of-Graphs- Wjec-Eduqas Higher2 主题
-
Graphing-Inequalities- Wjec-Eduqas Higher2 主题
-
Solving-Inequalities- Wjec-Eduqas Higher2 主题
-
Real-Life-Graphs Wjec-Eduqas Higher4 主题
-
Estimating-Gradients-And-Areas-Under-Graphs Wjec-Eduqas Higher2 主题
-
Equation-Of-A-Circle- Wjec-Eduqas Higher2 主题
-
Graphs-Of-Functions Wjec-Eduqas Higher6 主题
-
Linear-Graphs Wjec-Eduqas Higher4 主题
-
Quadratic-Equations Wjec-Eduqas Higher4 主题
-
Linear-Equations- Wjec-Eduqas Higher1 主题
-
Algebraic-Proof Wjec-Eduqas Higher1 主题
-
Rearranging-Formulae Wjec-Eduqas Higher2 主题
-
Coordinate-Geometry- Wjec-Eduqas Higher4 主题
-
Functions Wjec-Eduqas Higher3 主题
-
Forming-And-Solving-Equations Wjec-Eduqas Higher3 主题
-
Iteration Wjec-Eduqas Higher2 主题
-
Simultaneous-Equations Wjec-Eduqas Higher2 主题
-
Algebraic-Fractions- Wjec-Eduqas Higher4 主题
-
Completing-The-Square Wjec-Eduqas Higher1 主题
-
Factorising Wjec-Eduqas Higher6 主题
-
Expanding-Brackets Wjec-Eduqas Higher3 主题
-
Algebraic-Roots-And-Indices Wjec-Eduqas Higher1 主题
-
Introduction-To-Algebra Wjec-Eduqas Higher4 主题
-
Using-A-Calculator Wjec-Eduqas Higher1 主题
-
Surds Wjec-Eduqas Higher2 主题
-
Rounding-Estimation-And-Bounds Wjec-Eduqas Higher2 主题
-
Fractions-Decimals-And-Percentages Wjec-Eduqas Higher3 主题
-
Simple-And-Compound-Interest-Growth-And-Decay Wjec-Eduqas Higher4 主题
-
Percentages Wjec-Eduqas Higher3 主题
-
Fractions Wjec-Eduqas Higher4 主题
-
Powers-Roots-And-Standard-Form Wjec-Eduqas Higher4 主题
-
Prime-Factors-Hcf-And-Lcm- Wjec-Eduqas Higher4 主题
-
Number-Operations Wjec-Eduqas Higher10 主题
-
Product-Rule-For-Counting Wjec-Eduqas Higher
-
Systematic-Lists Wjec-Eduqas Higher
-
Related-Calculations- Wjec-Eduqas Higher
-
Multiplication-And-Division Wjec-Eduqas Higher
-
Addition-And-Subtraction Wjec-Eduqas Higher
-
Money-Calculations- Wjec-Eduqas Higher
-
Negative-Numbers- Wjec-Eduqas Higher
-
Irrational-Numbers Wjec-Eduqas Higher
-
Order-Of-Operations-Bidmasbodmas Wjec-Eduqas Higher
-
Mathematical-Symbols Wjec-Eduqas Higher
-
Product-Rule-For-Counting Wjec-Eduqas Higher
Questionnaires Wjec-Eduqas Higher
Exam code:C300
Questionnaires
What is a questionnaire?
-
A questionnaire is a set of questions
-
A questionnaire can be used to collect data
-
The questions can be open or closed
-
Open questions require written answers
-
Closed questions usually requires a selection between options
-
What does a good question look like?
-
A good question is clear and is not ambiguous
-
e.g. “Have you revised recently?” is ambiguous as it is not clear what is classed as recent
-
Instead you could ask “How many days has it been since you last revised?”
-
-
The question is not personal
-
Do not ask for someone’s name if it is not needed
-
-
The question gives a time frame if necessary
-
e.g. “How many times do you visit the gym in one week?”
-
-
The question is not leading
-
e.g. “Do you agree that my cooking is great?”
-
How do I write the options for a question?
-
The options should be exhaustive
-
You can include an option for “Other”
-
You can include an option for “Over 5 hours” or “Less than 20%”
-
-
The options could be grouped
-
Instead of asking for a person to state their age, you could give them age ranges to choose from
-
-
The options should not overlap
-
e.g. “2 to 4” and “4 to 5” overlap
-
Which option would someone choose if their answer is 4?
-
-
-
Avoid inequalities as they could cause confusion to the participants of the questionnaire
-
You could ask for the closest answer
-
e.g. “To the nearest hour, how long did you sleep last night?”
-
-
You could use descriptive words to describe inequalities
-
e.g. “At least 4 metres but less than 6 metres”
-
-
How do I make results fair?
-
Make sure you ask a random selection of people
-
Do not only ask one group of people who might give the same answer
-
-
Make sure you ask enough people
-
There is no exact number as it depends on the situation
-
If there are 1000 students in a school and you only ask 10 then that is only 1%
-
Worked Example
Rhys wants to investigate how fast teenagers can swim.
Rhys plans to ask the members of the swimming club at his school to complete his questionnaire.
(a) Give one reason why this sample might not be suitable.
The members of the swimming club are likely to be good swimmers, so can swim fast. They will not be representative of all teenagers.
One question on his questionnaire is:
How many 25 metre laps can you swim?
▢ 0 – 2
▢ 2 – 4
▢ 4 – 6
▢ More than 6
(b) Give two reasons why this question is unsuitable.
-
The question does not give a time frame.
-
The options 2 and 4 both overlap.
Responses