Question About Probability, Travel Distance, and What Function to Use?

MocExcel

New Member
Joined
Jun 22, 2017
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3
Hello!

I'm trying to figure out what is the probability of a unit traveling greater than X given my data set. I am testing what is the % chance of the distance being greater on 1 try.

Here is some info about the data set:
Mean Travel Distance: 33.8
Median Travel Distance: 25
Standard Deviation: 31.3
Sample Size: 2139
Max Distance: 192
Min Distance: 0

I was using the below equation, but I do not know if it is the right function because the data is skewed right instead of a normal distribution:

=1-NORM.DIST(Travel Distance Being Tested,Mean,Standard Deviation,TRUE)

Should I be using a different function based on my data set?
 

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shg

MrExcel MVP
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May 7, 2008
Messages
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Reckon someone would have to look at the data to see if they could fit a better distribution, but you could certainly use a formula to count the fraction of samples > x:

=countif(data, ">" & x) / count(data)
 

MocExcel

New Member
Joined
Jun 22, 2017
Messages
3
Not sure if this helps to better describe the data, but the =SKEW function is 1.63
 

shg

MrExcel MVP
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Messages
21,774
Office Version
  1. 2010
Platform
  1. Windows
Not really.
 

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