In Exercises 3542, use any method to solve the system. x 3y 174x 3y 7

Each family is equally like to be the one obtained. Determine the probability that the family selected has an annual income of a) between $50000 and $74999 b) under $25000 (What is probability Simply it is a percentage.) Basic properties of probabilities Property 1: The probability of an event is always between 0 and 1, inclusive. Property 2: The probability...