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# Tutor profile: Sam N.

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Sam N.
Honor Roll Finance Student and Former Martial Arts Instructor
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## Questions

### Subject:Microsoft Excel

TutorMe
Question:

You have a table with lots of data that you want to sort and be able to look at in different ways. What tool in Excel would you use to summarize this data?

Inactive
Sam N.

A pivot table allows you to summarize data quickly as well as quickly change the dimension of the data you are looking at.

### Subject:Basic Math

TutorMe
Question:

If your grandma bakes you a pie, and your brother eats half (1/2) of the pie. How many quarters of the pie are left?

Inactive
Sam N.

We know that we started with a whole pie (1) and that there are 2 halves in a pie. There are also 4 quarters in a whole pie. Next we need to find how many quarters your brother ate. There are 2 quarters in a half so your brother ate 2 quarters of the pie. This means that there are 4-2=2 quarters of the pie left! One for you and one for grandma.

### Subject:Statistics

TutorMe
Question:

Assuming that height is normally distributed and that the average height for males in the US is 5 feet 10 inches with a standard deviation of 4 inches, how likely is it that if you picked a random man in the US that he would be taller than 6 feet 2 inches?

Inactive
Sam N.

We know that the average male in the US is 70 inches tall (5 feet X 12 inches/foot + 10 inches) and that the cutoff in question is 74 inches tall (6 feet X 12 inches/foot +2 inches). To answer this sort of question we are going to use a standard normal distribution table (or calculator, but I got my answer using a table). First we need to find the Z-Score, to do this we take (Observation-Average)/Standard Deviation, so (74 inches-70 inches)/(4 inches). This works out to 1.00. Next, we go to the normal distribution table and find the number associated with a Z-Score of 1.00, this is 0.84134. We're not quite done yet though because the question is asking what the probability is that the randomly selected man is TALLER than 6 feet 2 inches. The number we found from the table is the probability that a randomly selected man is shorter than 6 feet 2 inches. So to find our answer, we take 1-0.84134. This gives us our answer of 0.15866 or 15.87%

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