For each situation below, determine if the variable(s) are discrete or continuous and if the information involves certainty, risk, and/or uncertainty. (a) The chance of an auto wreck is higher than the chance of a plane crash: 3% versus 0.4%, respectively. (b) Your next electricity bill will be somewhere between 100% and 120% of the current bill due to rate increases in your city. (c) The cost for driving on a toll road depends upon the distance traveled. It will be either $1.05, $1.78, or $3.94. (d) The doctor tells you there is an equal chance that your heart beats between 56 and 60 times per minute. (e) Your faculty advisor tells you that there is a higher or lower than 50% chance that you will graduate next year. The variable(s) are and the information involves