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

sorry i need the points

step-by-step explanation:

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correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,