Question

Three airlines serve a small town in Ohio. Airline A has 0.51 of all the scheduled flights, airline B has 0.19, and airline C has the remaining scheduled flights. Their on-time rates are 0.75, 0.64, and 0.49, respectively. A plane has just left on time. What is the probability that it was airline A? Please enter your answer with three decimals as a number between 0 and 1. 2. Flaws in a carpet tend to occur randomly and independently at a rate of one every 203 square feet. What is the probability that a carpet that is 8.5 feet by 11.3 feet contains no flaws? 3. How much money does a typical family of four spend at a McDonald's restaurant per visit? The amount is a normally distributed random variable with a mean of $18.35 and a standard deviation of $2.48. What is the amount below which only 10% of families of four spend at McDonald's? Please enter your answer with 4 decimals.

          Three airlines serve a small town in Ohio. Airline A has 0.51 of all the scheduled flights, airline B has 0.19, and airline C has the remaining scheduled flights. Their on-time rates are 0.75, 0.64, and 0.49, respectively. A plane has just left on time. What is the probability that it was airline A?
Please enter your answer with three decimals as a number between 0 and 1.

2. Flaws in a carpet tend to occur randomly and independently at a rate of one every 203 square feet. What is the probability that a carpet that is 8.5 feet by 11.3 feet contains no flaws?

3. How much money does a typical family of four spend at a McDonald's restaurant per visit? The amount is a normally distributed random variable with a mean of $18.35 and a standard deviation of $2.48.
What is the amount below which only 10% of families of four spend at McDonald's?
Please enter your answer with 4 decimals.

Added by Juan Carlos W.

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