Data & Chance

1

Types of Data

Categorical vs numerical, discrete vs continuous

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2

Collecting Data

Surveys, observations, experiments, population vs sample

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3

Frequency Tables

Tally marks, grouped data, totals

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4

Bar Charts and Column Graphs

Drawing rules, axes, scales, key features

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5

Pie Charts

Calculating angles, parts of a whole

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6

Line Graphs

Data over time, trends, when to use

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7

Stem-and-Leaf Plots and Dot Plots

Showing all values, shape of distribution

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Q1

Checkpoint 1

Lessons 1–7

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8

The Mean

Arithmetic average, from frequency tables

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9

The Median

Middle value, odd and even counts

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10

The Mode and Range

Most common value, spread of data

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11

Comparing Data Sets

Centre and spread, consistency

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12

Interpreting Graphs

Reading trends, peaks, outliers

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13

Misleading Graphs

Truncated axes, 3D effects, bias

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14

Introduction to Probability

Events, outcomes, simple probability

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Q2

Checkpoint 2

Lessons 8–14

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15

The Probability Scale

Fractions, decimals, percentages, words

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16

Experimental Probability

Relative frequency, law of large numbers

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17

Theoretical Probability

Equally likely outcomes, complementary events

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18

Sample Space and Tree Diagrams

Listing outcomes, multiplication rule

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19

Two-Stage Experiments

With and without replacement

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20

Data and Chance Synthesis

Connecting data and probability

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Q3

Checkpoint 3

Lessons 15–20

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QZ

Unit Quiz

All 20 lessons

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