The number of auto accidents in Athens, Ohio, is related to the regional number of registered automobiles in thousands (), alcoholic beverage sales in $10,000s (X2), and rainfall in inches (X3). Furthermore, the regression formula has been calculated as: where Y = number of automobile accidents a = 8.0 b = 3.5 b = 5.0 Y = a+bX+bX+b3x3, b3 = 2.5 For the given values of X1, X2, and X3, the expected number of accidents will be (round your responses to one decimal place): X X2 X3 # of accidents 2.0 3.0 2.0 7.0 7.0 3.0 4.0 7.0 3.0