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Related: Past Papers Topical Questions Checkpoint Science Stage 9 IGCSE Mathematics Grade Boundaries Command Words

Statistics

Cambridge Lower Secondary Checkpoint Mathematics (0862) · 6 topics

Data Collection and Sampling Methods

Types of Data Data Type Description Example Qualitative Non-numerical, describes qualities Favourite colour, hair colour Quantitative Numerical Height, test…
Bias in Data Collection

What is Bias? Bias is a systematic error in data collection or sampling that consistently skews results in one direction, making them unrepresentative of the…
Diagrams and Tables

Tally Charts and Frequency Tables A tally chart records data using tally marks, grouped in 5s (|||| with a diagonal line through it = 5). A frequency table…
Charts and Graphs

Bar Charts: Dual and Compound Dual bar chart: bars for two categories sit side by side at each label, for direct comparison. Compound (stacked) bar chart: bars…
Averages and Range: Comparing Distributions

The Four Measures Recap Mode: the most frequently occurring value. Median: the middle value when data is ordered. Mean: the sum of all values ÷ the number of…
Interpreting Data

Identifying Patterns, Trends, and Relationships Trend: an overall direction in data over time (increasing, decreasing, staying constant). Pattern: a repeating…