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Solution: Calculate the mean and variance for the random
Chapter 3, Problem 73E(choose chapter or problem)
QUESTION:
Calculate the mean and variance for the random variable in Exercise 3-35.
Questions & Answers
QUESTION:
Calculate the mean and variance for the random variable in Exercise 3-35.
ANSWER:
Solution:
Step 1 of 3:
The data about the typical depth for non failed wells in Baltimore Country is given.
Geological Formation Group |
Number of non failed Wells |
Non failed Well Depth |
Gnesis |
1,515 |
255 |
Granite |
26 |
218 |
Loch Raven Schist |
3,290 |
317 |
Mafic |
349 |
231 |
Marble |
280 |
267 |
Prettyboy Schist |
1,343 |
255 |
Other Schist |
887 |
267 |
Serpentine |
36 |
217 |
Total |
7,726 |
2,027 |
We have to find the mean and variance of the random variable.