TEACHER-GUIDE-VERIFIED · TG-V9-058

7. In a sample of 80 large sunspots, 52 produce major flares. Find relative frequency.

Verified solution

Solution: 52/80=0.65=65%.

Source: Teacher Guide V9 · English V9. Match the numbers and wording in your printed question before using this solution.

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VIDEO HELP · TG-V9-058

Find a Relative Frequency (TG-V9-058)

Use 52 major-flare cases out of 80 sampled sunspots to find 52/80 = 0.65 = 65%. Check the remaining 35% and distinguish a sample frequency from certainty.

Space Math Explorers · approved worked example · 1:32 · Watch on YouTube

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These pages reproduce verified solution steps for the registered V9 questions. It does not diagnose learning needs or replace instruction from a qualified teacher or tutor.