Question

the amOunt of time that a watch will run without having to be reset having a exponential distribution with mean 120days

Answer 1

Step-by-step explanation:

The amount of time that a watch will run without having to be reset is a random variable having an exponential distribution with θ=120 days. Find the probabilities that such a watch will: a) have to be reset in less than 24 days; b) not have to be reset in at least 180 days

Answer 2

Answer: the amount of time that a watch will run without having to be reset having a exponential distribution with mean 120days is 0

Step-by-step explanation:

Let, X denotes the amount of time that a watch will running without  resting, then ∅·$d$·$f$  of X is

          $f(X) =$ λ$e$$/$λ $x$

                   $=\frac{1}{120} e^{\frac{-1}{120} x}$

                   $= 0$.