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Probability/Statistics AQA GCSE (Statistics (concepts (population (apply…
Probability/Statistics
AQA GCSE
probability
Concepts
frequency
#
record, describe and analyse
trees
tables
diagrams
relative expected frequencies
relate to theoretical probability, using appropriate language
equivalency
#
fractions
decimals
percentages
randomness, fairness and equally likely events
calculate expected outcomes of multiple future experiments
probability
exhaustive set of outcomes sum to 1
independent
exhaustive set of mutually exclusive events sum to 1
combined
enumerate sets and combinations of sets systematically, using tables, grids, Venn diagrams
solve
theoretical possibility spaces for single and combined experiments with equally
likely outcomes and use
these to calculate theoretical probabilities
dependent
two-way tables, tree diagrams and Venn diagrams
bias
#
unbiased samples tend towards theoretical probability distributions, with increasing sample size
Statistics
concepts
population
apply statistics to describe
distribution
distributions of data sets
interpret, analyse and compare
appropriate graphical representation involving discrete, continuous and grouped data
box plots
appropriate measures of central tendency (median, mean, mode and modal class) and spread (range, including consideration of outliers)
quartiles and inter-quartile range
limitatons
data
types
discrete
continuous
class intervals
cumulative frequency
primary
secondary
interpret and construct
#
tables
frequency
time series data
charts
bar
pie
vertical line charts
ungrouped discrete numerical data
time series data
diagrams
pictograms
categorical data
histograms
grouped discrete data
continuous data
unequal class intervals
graphs
cumulative frequency graphs
#
scatter graphs
correlation
does not indicate causation
lines of best fit
predictions
interpolate
extrapolate
dangers of so doing
positive correlation
negative correlation
no correlation
weak correlation
strong correlation