IGCSE Maths Edexcel B 4MB1

Graphical representation of numerical data

*To include bar charts, pie charts and histograms

Cumulative frequency graphs are excluded*

Determination of the mean, median and mode for a discrete data set

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

Determination of a modal class and the class containing the median for grouped data

Understand the language and basic concepts of probability

To include the probability scale, sample spaces, relative frequency, probabilities and complements

Use of addition rule for two or more mutually exclusive events

*Knowing that when $A$ and $B$ are mutually exclusive events,

$P(A\text{ or }B)=P(A)+P(B)$*

Use of product rule for two or more independent events

*Knowing that when $A$ and $B$ are independent events,

$P(A\text{ and }B) = P(A) × P(B)$*

Determination of the probability of two or more independent events

The use of tree diagrams will be expected

Using simple conditional probability for combined events

Finding very simple conditional probability

The notation $P(A|B)$ will not be used

Understand and use the term ‘expected frequency’