Statistics and Probability

Overview

Statistics and Probability form a significant portion of the KAR TET Paper II Mathematics section. These topics test your ability to analyse data, calculate central tendencies, and understand the likelihood of events—skills essential for teaching upper-primary students how to interpret real-world information.

For the exam, you must be comfortable calculating mean, median, and mode from raw data, grouped frequency distributions, and simple datasets. Probability questions typically involve basic experiments like coin tosses, dice throws, and card draws. The pedagogy angle expects you to connect these concepts to everyday situations students encounter.

Mastery here requires both computational accuracy and conceptual clarity. Many questions are straightforward if you know the formulas, but careless errors in ordering data or misreading frequency tables are common traps.

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Key Concepts

• **Mean (Arithmetic Average)**: The sum of all observations divided by the number of observations. It uses every data point and is sensitive to extreme values (outliers).

• **Median**: The middle value when data is arranged in ascending or descending order. For an even number of observations, it is the average of the two middle values. It is not affected by extreme values.