Question

The length of stay at a specific emergency department in a hospital in Phoenix, Arizona had a mean of 4.6 hours. Assume that the length of stay is exponentially distribution.

What is the standard deviation of the length of stay?

Answer 1

The standard deviation of the length of stay is approximately 0.217 hours.

Step-by-step explanation:

To find the standard deviation of the length of stay in this case, we can use the formula:

standard deviation = 1 / mean

Given that the mean length of stay is 4.6 hours, we can substitute it into the formula:

standard deviation = 1 / 4.6

standard deviation ≈ 0.217

Therefore, the standard deviation of the length of stay is approximately 0.217 hours.