ANSWER:
N = 16
STEP BY STEP EXPLANATION:
2(5+3)
2(5+3)
n=16
504+640=1144 hope this helps!
X² = 1/4 ⇒√⇒ x₁ = 1/2, x₂ = -1/2
Answer:
The probability that the instrument does not fail in an 8-hour shift is 
The probability of at least 1 failure in a 24-hour day is 
Step-by-step explanation:
The probability distribution of a Poisson random variable X representing the number of successes occurring in a given time interval or a specified region of space is given by the formula:

Let X be the number of failures of a testing instrument.
We know that the mean
failures per hour.
(a) To find the probability that the instrument does not fail in an 8-hour shift, you need to:
For an 8-hour shift, the mean is 

(b) To find the probability of at least 1 failure in a 24-hour day, you need to:
For a 24-hour day, the mean is 

Answer:
A
Step-by-step explanation:
6/3