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Probability and Statistics

Probability and Statistics

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Probability

Math Angel video: Explanation of probability, covering likelihood of events and a scale from impossible (0%) to certain (100%) for clear understanding.
Grade 10

Calculating Probability

Probability measures how likely an event is to happen, from 0 (impossible) to 1 (certain). Learn how…
Math Angel video: Drawing coloured balls from a bag of 50—showing 50% blue balls and 30% red balls to illustrate probability and percentages.
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…
Math Angel video: Probability tree diagrams showing drawing 9 balls (3 red, 6 blue), with dependent probabilities and combined event outcomes explained.
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

Math Angel video: Tally mark chart comparing counts for white, blue, and yellow categories with totals shown—visual math data analysis.
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…
Math Angel video: Table of absolute frequencies for Class A students getting to school—5 walk, 12 by bus, 3 by car, 5 cycle; total is 25 students.
Grade 8

Absolute Frequency and Relative Frequency

Relative frequency is the proportion of a category, calculated by dividing the absolute frequency by…
Math Angel video: Pie chart with four sections labeled 40%, 25%, 20%, and 15%, representing contributions of different categories for visual data analysis.
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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