Statisticsmedium · Past Paper
A bag contains 3 red, 5 black and 4 white balls. What is the probability that a ball drawn is NOT black?
A5/12
B7/12
C1/3
D3/4
✓ Correct Answer: B — 7/12
Total = 12. Non-black = 3 (red) + 4 (white) = 7. Probability = 7/12.
Share this question
More from Statistics
- If two dice are thrown, what is the probability that the sum is a multiple of 4?
- A number is chosen from 1 to 20. What is the probability that it is a prime number?
- In a pie chart, the sum of all central angles is always:
- Which of the following can NOT be a probability of an event?
- If mean = 10 and median = 12, then mode is: