Statisticsmedium · Past Paper
If a number is selected from 1 to 15, what is the probability it is a prime number?
A6/15
B5/15
C1/2
D7/15
✓ Correct Answer: A — 6/15
Primes: 2, 3, 5, 7, 11, 13 (6 numbers). 6/15 = 2/5.
Share this question
More from Statistics
- In a histogram, what does the area of each rectangle represent?
- If P(A) = 2/3 and P(B) = 1/2, and they are independent, find the probability that neither occurs.
- What is the probability of a number chosen from 1 to 15 being a multiple of 4?
- What is the mean of the first five prime numbers starting from 2?
- What is the mean of the first 10 even numbers?