2007-02-27 03:48:23 · 14 answers · asked by payal p 1 in Science & Mathematics ➔ Mathematics
sample space: 1,3,5
favourable events:3,5
note: 1 is not a prime number. 1 is niether prime nor composite.
probability:2/3 = 0.67
2007-02-27 03:53:38 · answer #1 · answered by Anonymous · 7⤊ 0⤋
I thought 1 was a prime number. However, I learned from last year's Royal Institute Christmas Lecture that it is no longer regarded as prime, although it used to be.
2007-02-28 02:07:49 · answer #2 · answered by Anonymous · 0⤊ 0⤋
By definition, a prime number has two UNIQUE divisors: 1 and itself.
1 isn't prime since it doesn't have two unique divisors.
Therefore, the probability is 2/3.
Edit: melius has a point. Your question didn't specify how many sides the die has. I assume you meant a six-sided die?
2007-02-27 04:03:30 · answer #3 · answered by Bob G 6 · 3⤊ 0⤋
Probability of a prime with odd number on one die is 1, since 1, 3 and 5 are all primes.
2007-02-27 03:51:36 · answer #4 · answered by hcbiochem 7 · 0⤊ 5⤋
There are three odd numbers (1, 3, 5), two of which are prime. So, 2/3.
2007-02-27 03:51:07 · answer #5 · answered by Anonymous · 6⤊ 1⤋
2 out of 3
2007-02-27 04:02:27 · answer #6 · answered by aditalna 2 · 4⤊ 0⤋
1 is *not* considered to be a prime number.
2/3
Doug
2007-02-27 03:54:24 · answer #7 · answered by doug_donaghue 7 · 7⤊ 0⤋
Sample Space- {1,3,5}
Probability = 2/3
2007-02-27 03:52:40 · answer #8 · answered by suchi- i rock! 1 · 5⤊ 0⤋
The first person (and others) gave the correct answer.
2007-02-27 04:09:11 · answer #9 · answered by S. B. 6 · 1⤊ 0⤋
100% All are prime
2007-02-27 03:53:37 · answer #10 · answered by Anonymous · 0⤊ 5⤋