Statistics and probability
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10 Statistics and probability
10.AGraphical representation of data
Graphical representation of numerical data To include bar charts, pie charts and histograms Cumulative frequency graphs are excluded
10.BMean, median and mode
Determination of the mean, median and mode for a discrete data set
10.CGrouped mean estimates
Calculation of an estimate of the mean of a larger number of quantities given in grouped frequencies Questions involving weighted or moving means will not be set
10.DModal class and median class
Determination of a modal class and the class containing the median for grouped data
10.EProbability language
Understand the language and basic concepts of probability To include the probability scale, sample spaces, relative frequency, probabilities and complements
10.FAddition rule
Use of addition rule for two or more mutually exclusive events Knowing that when A and B are mutually exclusive events, P(A or B) = P(A) + P(B)
10.GProduct rule
Use the product rule for two or more independent events: for independent A and B, P(A and B) = P(A) × P(B).
10.HIndependent event probability
Determination of the probability of two or more independent events The use of tree diagrams will be expected
10.IConditional probability
Using simple conditional probability for combined events
10.JSimple conditional probability
Finding very simple conditional probability The notation P(A|B) will not be used
10.KExpected frequency
Understand and use the term ‘expected frequency’