Carcass wrote:
What is the probability that the sum of two different single-digit prime numbers will NOT be prime?
A. \(0\)
B. \(\frac{1}{2}\)
C. \(\frac{2}{3}\)
D. \(\frac{5}{6}\)
E. \(1\)
Kudos for the right answer and explanation
Here,
single digit prime nos. are
2 + 3
2 + 5
2 + 7
3 + 5
3 + 7
5 + 7
Out of these 6 options only 2 options, that are : \((2 + 3)\) and \((2 + 5)\) add up to prime number. Remaining 4 options will not be prime
Probability = \(\frac{4}{6} = \frac{2}{3}\)