A pizza shop delivers an extra large pizza, which is sold for $20, and costs the pizza shop $12 to make. The pizza shop has a delivery policy that says if the pizza takes longer than half an hour to arrive, there is no charge.
Experience has shown that delivery takes longer than half an hour only 10% of the time.
Let the random variable X be the pizza shop's profit for a randomly selected delivery order for one of these
pizzas. Here is the probability distribution for X:
Late
On-time
X = profit
-$12
$8
P(X)
0.10
0.90
Given that pix = $6, calculate o x.
Round your answer to two decimal places.
Ox=
dollars
2 of 4 000
Check