DSOM 5 EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
Which of the following is not a characteristic of the normal probability
distribution?
The standard deviation must be 1.
What is the total area under the normal distribution curve?
1
Fast food restaurants pride themselves in being able to fill orders quickly. A
study was done at a local fast food restaurant to determine how long it took
customers to receive their order at the drive-thru. It was discovered that the time
it takes for orders to be filled is exponentially distributed with a mean of 1.5
minutes. What is the probability that it takes less than one minute to fill an order?
0.4866
A health conscious student faithfully wears a device that tracks his steps.
Suppose that the distribution of the number of steps he takes is normally
distributed with a mean of 10,000 and a standard deviation of 1,500 steps. How
many steps would he have to take to make the cut for the top 5% for his
distribution?
12,467
COMPLETE SOLUTIONS VERIFIED
Which of the following is not a characteristic of the normal probability
distribution?
The standard deviation must be 1.
What is the total area under the normal distribution curve?
1
Fast food restaurants pride themselves in being able to fill orders quickly. A
study was done at a local fast food restaurant to determine how long it took
customers to receive their order at the drive-thru. It was discovered that the time
it takes for orders to be filled is exponentially distributed with a mean of 1.5
minutes. What is the probability that it takes less than one minute to fill an order?
0.4866
A health conscious student faithfully wears a device that tracks his steps.
Suppose that the distribution of the number of steps he takes is normally
distributed with a mean of 10,000 and a standard deviation of 1,500 steps. How
many steps would he have to take to make the cut for the top 5% for his
distribution?
12,467
