Question
Consider a dice of 20 sides. Find the P (prime). Explain
Answers
Answered by
GPT 3.5
To find the probability of rolling a prime number on a 20-sided die, we first need to determine how many prime numbers are on a 20-sided die.
The prime numbers less than or equal to 20 are: 2, 3, 5, 7, 11, 13, 17, and 19. There are a total of 8 prime numbers on a 20-sided die.
Since there are 20 equally likely outcomes when rolling the die, the probability of rolling a prime number is given by:
P(prime) = Number of prime numbers / Total number of sides
P(prime) = 8 / 20
P(prime) = 0.4 or 40%
Therefore, the probability of rolling a prime number on a 20-sided die is 40%.
The prime numbers less than or equal to 20 are: 2, 3, 5, 7, 11, 13, 17, and 19. There are a total of 8 prime numbers on a 20-sided die.
Since there are 20 equally likely outcomes when rolling the die, the probability of rolling a prime number is given by:
P(prime) = Number of prime numbers / Total number of sides
P(prime) = 8 / 20
P(prime) = 0.4 or 40%
Therefore, the probability of rolling a prime number on a 20-sided die is 40%.