A bicycle lock requires a two-digit code of numbers 1 through 9, and any digit may be used only once. Which expression would det
ermine the probability that both digits are even? P(both even) = StartFraction (4 P 1) (3 P 1) Over 9 P 2 EndFraction
P(both even) = StartFraction (4 C 1) (3 C 1) Over 9 C 2 EndFraction
P(both even) = StartFraction (5 P 1) (4 P 1) Over 9 P 2 EndFraction
P(both even) = StartFraction (5 C 1) (4 C 1) Over 9 C 2 EndFraction
When you say that two numbers are relatively prime, it means that both numbers do not have a common factor except 1. Stephen is incorrect because 38 and 40 are both multiples of 2.