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Probability and Statistics

Probability and Statistics

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Probability

Explanation of equiprobable events by using a die and showing that each face has an equal probability of 1/6.
Grade 10

Calculating Probability

Probability measures how likely an event is to happen, from 0 (impossible) to 1 (certain). Learn how…
Explanation of the probability of drawing blue or red balls from a bag with 50 balls using the addition rule of probability for mutually exclusive events.
Grade 10

Addition Rule of Probability and Expected Frequency

For mutually exclusive events, P(A or B) = P(A) + P(B). Learn how to add probabilities and calculate…
Probability tree diagrams illustrate the drawing of 9 balls, 3 red and 6 blue, with dependent probabilities and combined event outcomes.
Grade 10

Probability Tree Diagrams

A probability tree diagram is a visual tool to show all possible outcomes of an event and calculate…
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Statistics

Tally mark chart comparing counts for white, blue, and yellow categories with totals displayed at the bottom.
Grade 7

Tally Marks, Bar Charts, Tables

Tally marks count with a bundle of 5 lines. Bar charts compare visually, and tables summarise data c…
Table showing absolute frequencies of how Class A students get to school: 5 walk, 12 take the bus, 3 go by car, 5 cycle. Total count is 25.
Grade 8

Absolute Frequency and Relative Frequency

Relative frequency is the proportion of a category, calculated by dividing the absolute frequency by…
A pie chart divided into four sections, labelled 40%, 25%, 20%, and 15%, representing different category contributions.
Grade 8

Pie Chart

A pie chart represents data as slices of a circle, showing proportions within a whole. Learn how to…
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