Hi, I'm currently stuck on a homework question and I was hoping if I could get some help.

Group A has 50% chance of ordering french fries (price: \$5), 40% chance of ordering milkshake (price: \$6), and 10% chance of ordering a burger (price: \$7) .

Group B has 30% chance of ordering french fries (price: \$5), 30% of chance of ordering a milkshake (price: \$6), and 10% chance of ordering a burger (price: $7) .

What is the average revenue per group?

Not sure if my work is correct: Avg revenue for Group A: ($5 * 50%) + ($6 * 40%) + ($7 *10%) = $5.6.

Avg revenue for Group B: ($5 * 30%) + ($6 * 30%) + ($7 *10%)