Atown has three fire engines operating independently. the probability that a specific engine is available when needed is 0.86. (a) what is the probability that no fire engine is available when needed? (b) what is the probability that a fire engine is available when needed?

Part a : 0.002744

Part b : 0.997256

Step-by-step explanation:

The probability that a specific engine is available when needed is 0.86.

So, The probability that fire engine will not be available when needed =

(a)

The probability that no fire engine is available when needed =

= 0.002744

(b)

p(at least one available) =

= 0.997256

2nd one in the first row is correct

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney