Question

At the local Quicki Mart Gas Station, two employees review the breakdown of last month’s sales data, as follows:

• 31.07% of all sales were made to trucks
• 70.02% of all sales were for regular gas
• 20.45% of all sales were for mid-grade gas
• 0% of the sales of premium gas were for trucks.
• Note that there’s only 3 types of gas; regular, mid-grade and premium.
• 74.39% of the sales of mid-grade gas were not for trucks

            Assuming that this distribution is true for future purchases, if a customer pulls into the station and they are driving a truck, what’s the probability that they will buy regular gas?

	a.	70.02%
	b.	31.07%
	c.	83.14%
	d.	44.12%
	e.	64.28%

Answer 1