Lesson 2e.03
2e.03 Know that correlation does not necessarily imply causation and multiple factors may... Quiz: Pearson Edexcel Statistics, Unit 2
20 questions
In partnership with Revision Ninja
Lesson 2e.03, Know that correlation does not necessarily imply causation and multiple factors may...: 20 multiple choice questions for the Pearson Edexcel GCSE Statistics (1ST0), Unit 2: Processing, representing and analysing data, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
Correlation does not necessarily imply what?
- Association
- Causation
- A direction
- A trend
-
What term describes a statistical relationship that is not causal?
- Spurious correlation
- Positive correlation
- Linear regression
- Interpolation error
-
Why might car ownership and birth rate show a statistical correlation across cities?
- Spontaneous generation
- Random sampling
- Direct causation
- Population size
-
What does it mean when multiple factors interact in a statistical study?
- Zero correlation
- Data corruption
- Combined variables
- Single causation
-
What common factor typically links ice cream sales and sunburn cases?
- Direct causation
- Population size
- Random chance
- Hot weather
-
What must be established before claiming that variable A causes variable B?
- Scatter plot trend
- Strong correlation
- Large sample size
- Controlled evidence
-
What method is required to prove direct causation between correlated variables?
- Controlled experimentation
- Spearman rank test
- Scatter diagram analysis
- Line of best fit
-
What common factor links shoe size and reading ability in children?
- Age
- Shoe brands
- Reading speed
- Foot growth
-
What is a third variable that affects both measured variables called?
- Confounding variable
- Random variable
- Control variable
- Dependent variable
-
Why must multiple factors be considered when interpreting data correlation?
- Simple causation
- Hidden influences
- Linear scaling
- Data cleansing
-
What common factor usually links the number of firefighters and fire damage?
- Weather conditions
- Firefighter skill
- Fire size
- Equipment cost
-
What term describes a hidden third factor affecting both correlated variables?
- Control variable
- Spurious variable
- Confounding factor
- Independent variable
-
What does a significant correlation between two variables primarily justify?
- Mathematical proof
- Further investigation
- Immediate rejection
- Direct causation
-
What crucial limitation does correlation fail to show regarding variables?
- Numerical value
- Direction of cause
- Data spread
- Sample size
-
Why might a correlation between two variables disappear when a third variable is controlled?
- Data became non-linear
- The sample size doubled
- Confounding variable removed
- Interpolation failed
-
What underlying group difference should be checked when comparing student laptop use and scores?
- Room temperature
- Shoe size
- Eye colour
- Prior attainment
-
What alternative direction of relationship must be considered when variables correlate?
- Data extrapolation
- Reverse causation
- Zero correlation
- Linear regression
-
Which action helps prevent mistaking a spurious correlation for direct causation?
- Increasing font size
- Removing outliers
- Checking other variables
- Rounding decimals
-
What statistical concept is illustrated when crop yield depends on rainfall and fertiliser combined?
- Multiple factors
- Extrapolation error
- Spurious correlation
- Data interpolation
-
What does a high correlation coefficient of 0.9 indicate about two variables?
- Strong association
- Zero relationship
- Perfect independence
- Proven causation
Related quizzes
- Represent data sets pictorially using calculated key values as necessary, and... Quiz · 2a.01 · 20 questions
- Interpret and compare data sets displayed pictorially: population pyramid, choropleth... Quiz · 2a.02 · 20 questions
- Represent data sets graphically using calculated key values as necessary, and... Quiz · 2a.03 · 20 questions
- Calculate and use frequency density to draw histograms (unequal class width), and... Quiz · 2a.04 · 20 questions
- Justify the appropriate format and produce accurate visualisation of data Quiz · 2a.05 · 20 questions
- Recognise where errors in construction lead to graphical misrepresentation, including... Quiz · 2a.06 · 20 questions
- Extract and calculate corresponding values in order to compare data sets that have... Quiz · 2a.07 · 20 questions
- Select and justify appropriate form of representation with regard to the nature of data Quiz · 2a.08 · 20 questions
- Determine skewness from data by inspection and by calculation Quiz · 2a.09 · 20 questions
- Interpret a distribution of data in terms of skewness identified from inspection or... Quiz · 2a.10 · 20 questions