In: Statistics and Probability
For customers with a particular phone company, the amount that is paid monthly (in dollars) is normally distributed, with a mean of 83 and a standard deviation of 2.75.
Find the value k such that 80% of all customers pay less than k dollars per month. Select the closest to your answer.
options:
85.5 |
|
85.3 |
|
85.2 |
|
85.0 |
|
85.4 |
|
85.1 |
The value k such that 80% of all customers pay less than k dollars per month is 85.3.
Correct option: Option 2