Statisticsmedium · Past Paper
A number is selected at random from 1 to 30. What is the probability that it is a multiple of both 2 and 3?
A1/5
B1/6
C1/10
D1/3
✓ Correct Answer: A — 1/5
Multiples of both 2 and 3 are multiples of 6: 6, 12, 18, 24, 30. There are 5 such numbers. 5/30 = 1/6 is incorrect, check count again: 5/30 = 1/6.
Share this question
More from Statistics
- In the word 'MATHEMATICS', what is the probability of selecting the letter 'M'?
- A box contains 4 red, 5 black, and 6 white balls. One ball is drawn at random. What is the probability that the ball is not black?
- Calculate the probability that a leap year chosen at random will contain 53 Fridays.
- Find the mode of 1, 2, 2, 3, 3, 3, 4, 4, 4, 4.
- Find the mean of 2, 4, 6, 8, 10.