A couple planning a vacation needs to choose between four different modes of transportation as shown in the table. Depending on the weather, either excellent, normal, or bad, they have estimated their daily comfort expenses.

1-Using the information in Table 1, which alternative is BEST if further study revealed that the probability of excellent weather is 0.1, the probability of normal weather is 0.2, and the probability of bad weather is 0.7

Table 1

	Excellent Weather	Normal Weather	Bad Weather
Plane	$70	$51	$38
Train	$22	$46	$90
Automobile	$9	$14	$52
Boat	$44	$35	$24