A student who waits tables at a restaurant recorded the cost of meals and the tip left by single diners. Table 3 for Problem 3 Data Set Meal Cost (in dollars) $4.75 $6.85 $12.50 $20.42 $2.00 Tip (in dollars) $1.25 $1.50 $2.50 $3.85 $2.00 1. Identify your variables (including units). What does x =? What does y =?