Solution Found!
The discharge of suspended solids from a phosphate mine is
Chapter 1, Problem 28SE(choose chapter or problem)
Problem 28SE
The discharge of suspended solids from a phosphate mine is normally distributed with mean daily discharge 27 milligrams per liter (mg/L) and standard deviation 14 mg/L. In what proportion of the days will the daily discharge be less than 13 mg/L?
Questions & Answers
QUESTION:
Problem 28SE
The discharge of suspended solids from a phosphate mine is normally distributed with mean daily discharge 27 milligrams per liter (mg/L) and standard deviation 14 mg/L. In what proportion of the days will the daily discharge be less than 13 mg/L?
ANSWER:
Solution 28SE
Step1 of 2:
Let us consider a random variable “X” it presents the discharge of suspended solids from a phosphate mine. A random variable “X” follows normal distribution with mean and standard deviation
That is XN()
XN()
We need to find the proportion of the days will the daily discharge be less than 13 mg/L.