Question 1: What is the probability of flipping a coin and getting heads? Write your answer as a decimal between 0 and 1.

Answer: 0.5

Question 2: If a spinner has 4 equal sections numbered 1 to 4, what is the probability of landing on number 3?

Answer: 0.25

Question 3: A bag contains 3 red, 2 blue, and 5 green marbles. What is the probability of randomly drawing a blue marble? Express as a decimal.

Answer: 0.2

Question 4: Construct a probability scale from 0 to 1 and mark the probability of getting a 6 on a fair die.

Answer: 0.167

Question 5: A card is drawn from a standard deck. What is the probability it is a king? Write your answer as a decimal.

Answer: 0.0625

Question 6: Explain why the probability of an impossible event is 0 and the probability of a certain event is 1.

Answer: An impossible event cannot happen, so its probability is 0. A certain event always happens, so its probability is 1.

Question 7: A game involves rolling two dice. What is the probability that the sum is 7? Show your working.

Answer: Number of outcomes with sum 7: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1). Total outcomes: 36. Probability = 6/36 = 0.167

Question 8: A box has 10 chocolates, 3 of which are spoiled. If you pick one chocolate at random, what is the probability you pick a good chocolate?

Answer: 0.7

Question 9: A spinner is divided into 8 equal sectors numbered 1 to 8. What is the probability of spinning an even number?

Answer: 0.5

Question 10: Identify and fix the mistake: A bag contains 5 red and 5 blue marbles. The probability of drawing a red marble is 0.6.

Answer: Incorrect. Probability of red = 5/10 = 0.5. The correct probability is 0.5.