A: P2 – 13p + 40 = 0 for p  4, 5, 7, 8, 9 and 10 with probability 5 / 10. The answer is (B).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:If p^2 – 13p + 40 = l, and p is a positive integer between 1 and 10, inclusive, what is the probability that l < 0? Answer Choices: A)1/10 B)1/5 C)2/5 D)3/5 E)3/10