The life of a certian type of engine is normally distributed with a mean of 10 and a standard deviation of 1.5.If one engine is randomly selected, what is the probability that the life of this engine is between 8 and 13 years old

the answer is a

Step-by-step explanation:

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .