3. Representing data


Statistics
3. Representing data
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Statistics
3. Representing data

Slide 1 - Tekstslide

Planning
- Review previous lesson
-Introduction (Activity)
-New theory
-Activity

Slide 2 - Tekstslide

Review

Slide 3 - Tekstslide

Introduction
- Page 61 MY1 book
Activity: Representing quantitative data
timer
10:00

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Representing data
Graphs & charts

Slide 6 - Tekstslide

Representing data
Graphs & charts
- Histograms and barcharts
- Line graphs.
- Pie charts
- Pictographs
- Scatter plots

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bar graph allows you to compare and contrast metrics (averages, sums, etc.) across different categories while Histogram allows you to view the distribution, or relative frequencies, of values in a dataset.

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1. Histograms vs. Bar Charts
Histogram:

Use when: You want to show the distribution of continuous data (e.g., ages, heights, test scores).

Key feature: Bars touch each other because the data is continuous.

Example: Number of students in different age ranges (10–12, 13–15, etc.).

Bar Chart:

Use when: You want to compare categories of discrete data.

Key feature: Bars are separated because the categories are distinct.

Example: Number of students in each grade (Grade 6, Grade 7, Grade 8).

Slide 11 - Tekstslide

Histogram


Example: Frequencies of student ages.
Use for: Showing the distribution of continuous data (e.g., ages).

Slide 12 - Tekstslide

3. Representing data

Slide 13 - Tekstslide