Question

The mean hourly operating cost of Mango Airline is R2071. Assume that the hourly operating cost...

The mean hourly operating cost of Mango Airline is R2071. Assume that the hourly operating cost is normally distributed.

µ = R2071.00          σ = R220.32

b) What is the probability that the hourly operating cost of Mango Airline is between R200.00 and R2500.00?

Homework Answers

Answer #1

Let x = the hourly operating cost of Mango Airline

Given that x is normally distributed with

Mean and

Population Sd =

we want to find the probability that the hourly operating cost of Mango Airline is between 2000.00 and 2500.00

i.e.

By using Z score we can calculate it

where

For x = 2000

For x = 2500

i.e. we want to find the probability that

............( By using Z table)

   ,,,,,,,,,,( Answer)

Therefor the probability that the hourly operating cost of Mango Airline is between 2000.00 and 2500.00 is 0.6006 ,,,,,,,,( Answer)

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