If a dice is rolled once, what is the probability that it will show a prime number (1 is not prime)?
2007-09-08 13:07:30 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
In mathematics, a prime number (or a prime) is a natural number which has exactly two distinct natural number divisors: 1 and itself. An infinitude of prime numbers exists, as demonstrated by Euclid in about 300 BC. The first 30 prime numbers are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113
so...
2,3,5
3 chances out of 2 or 1/2
2007-09-08 13:14:34 · answer #1 · answered by KitKat 3 · 0⤊ 2⤋
If a dice is rolled once, what is the probability that it will show a prime number (1 is not prime)?
Answer:
1 out of 2
2007-09-08 20:27:49 · answer #2 · answered by TENNIS BUM 2 · 0⤊ 0⤋
There are 3 prime numbers. So you have 3/6...or 1/2 probability. (2, 3 and 5 are prime numbers)
2007-09-08 20:16:01 · answer #3 · answered by Jenny 3 · 0⤊ 0⤋
P(prime) = 3/6 = 1/2, since 2, 3, and 5 are prime numbers.
2007-09-08 20:12:29 · answer #4 · answered by sahsjing 7 · 0⤊ 0⤋
1/2
2007-09-08 20:19:19 · answer #5 · answered by Anonymous · 0⤊ 0⤋
3 out of 6
2007-09-08 20:18:56 · answer #6 · answered by Fayeshun B 2 · 0⤊ 0⤋
1/2
2,3,5 are prime, so 3 chances out of 6 possible outcome is a half
2007-09-08 20:23:34 · answer #7 · answered by asic design gal 2 · 0⤊ 0⤋
1 is prime
2007-09-08 20:16:18 · answer #8 · answered by calebrules1991 5 · 0⤊ 2⤋
possible primes are 2,3,5, so P = 3/6 = 1/2
2007-09-08 20:12:18 · answer #9 · answered by Philo 7 · 1⤊ 0⤋
50% chance to roll a prime number on a single die. 3 (2,3,5) of 6 numbers.
Note: Did you mean one DIE or two DICE?
2007-09-08 20:14:39 · answer #10 · answered by Anonymous · 1⤊ 0⤋