Life Orientation Grade 10 Practice Exam 2026 - Free Grade 10 Life Orientation Practice Questions and Study Guide

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Which factor should you examine to assess the reliability of a graph about teenage smoking trends?

The color scheme used.

The time frame and sample size, and potential biases.

Assessing the reliability of a graph about teenage smoking trends starts with the data behind it. The key factors are the time frame, the sample size, and any potential biases in data collection. The time frame shows whether long-term patterns are captured; a small or unrepresentative sample size reduces precision and representativeness; biases can distort the results and mislead interpretation. In contrast, color schemes, font size, or decorative elements influence readability or aesthetics but do not determine trustworthiness of the data itself.

The font size.

The decorative elements.