Layla is thinking of a positive, single digit, even number, Lou guesses it is 7. What is the probability that Lou's guess is correct? Please help
The probability that Lou's guess is correct would be 0 % of expressed as a percentage. This is because this is not one of the descriptions that Layla is thinking of, when she is thinking of a single digit number. 7 is not an even number, but an odd one.