Ages 10–11🧮 Mathematics10 verified questions on this shelf
Calculating Simple Probability
Calculate the probability of a simple event with equally likely outcomes using the formula: probability = number of favourable outcomes ÷ total number of possible outcomes; express the result as a fraction in its simplest form; apply to ro…
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Question 1 of 3
A class plays three chance games. 1) A spinner is divided into 5 equal sections numbered 1‑5. What is the probability it lands on a prime number? 2) A bag contains 4 green, 2 yellow, and 4 red marbles. What is the probability of drawing a green marble? 3) A standard die is rolled. What is the probability of rolling a number greater than 4? If the three games are played independently, what is the probability that all three events happen together?
Question 2 of 3
Bag A contains 2 blue marbles and 3 red marbles. Bag B contains 5 blue marbles and 5 red marbles. A bag is selected at random, and then one marble is drawn from the chosen bag. What is the probability that the drawn marble is blue? Express your answer as a simplified fraction.
Question 3 of 3
A bag contains 3 blue marbles and 7 red marbles. If one marble is drawn at random, what is the probability that the marble is blue?
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