Unit 9 · Class 7 IB MYP · Formula Sheet

Probability (Experimental) Formulas — Class 7 IB MYP

Conduct experiments to determine experimental probability and compare with theoretical values.

Key Formulas

Experimental Probability

P(E) = \dfrac{\text{frequency of E}}{\text{total trials}}

Theoretical Probability

P(E) = \dfrac{n(E)}{n(S)}

Complement

P(\bar{E}) = 1 - P(E)

Worked Examples

1Using: Probability

A die is thrown. Find P(getting an even number).

Step 1: Even outcomes: {2, 4, 6} = 3.

Step 2: Total outcomes = 6.

Step 3: P = 3/6 = 1/2.

Answer: 1/2

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Frequently Asked Questions

How many formulas are in Class 7 IB MYP Probability (Experimental)?+
There are 3 formulas in the Probability (Experimental) chapter for Class 7 IB MYP. Each formula is essential for solving problems in this topic.
How to remember Probability (Experimental) formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Probability (Experimental) formulas enough for exams?+
Yes, these formulas cover the complete IB MYP Class 7 syllabus for Probability (Experimental). Practice applying them to different types of questions for full exam readiness.

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