Topic Details (Notes format)

How to Calculate Probability of Simple Events

Subject: Mathematics

Book: Maths Mastery

Probability quantifies how likely an event is to occur, calculated by favorable outcomes ÷ total possible outcomes. For instance, flipping a fair coin yields two possible outcomes: heads or tails. The probability of heads is 1/2. When rolling a six-sided die, the probability of rolling a 4 is 1/6. Basic probability helps you analyze games of chance, forecast risk in business, or interpret scientific experiments. Mastery of this fundamental approach sets the stage for more complex topics like compound events, conditional probability, and statistical inference.

Practice Questions

If the sum of three consecutive integers is 96, what are the integers?

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If x^2 - 5x + 6 = 0, what are the roots?

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A man rows downstream at 6 km/h and upstream at 4 km/h. What is the speed of the stream?

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What is the slope of a line passing through the points (2, 3) and (4, 7)?

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If x = 3 and y = 4, what is the value of x^2 + y^2?

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The LCM of 12 and 15 is:

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If x^3 - 3x^2 + 4 = 0, what is one root of the equation?

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A number is increased by 20% and then decreased by 20%. What is the net change?

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If 5x - 2 = 13, what is the value of x?

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If sin(A) = 1/2 and A is acute, what is the value of A?

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