Asked by Janice
Daily output of Marathon's Garyville, Lousiana, refinery is normally distributed with a mean of 232,000 barrels of crude oil per day with a standard deviation of 7,000 barrels.
Find the probability of producing..
a.
at least 232,000 barrels
b.
between 232,000 and 239,000 barrels
c.
less than 239,000 barrels
d.
less than 245,000 barrels
e.
more than 225,000 barrels
Find the probability of producing..
a.
at least 232,000 barrels
b.
between 232,000 and 239,000 barrels
c.
less than 239,000 barrels
d.
less than 245,000 barrels
e.
more than 225,000 barrels
Answers
Answered by
Reiny
A wonderful little applet here:
http://davidmlane.com/hyperstat/z_table.html
Just enter the mean and sd, and then click on the suitable "between", "below" etc with the given values.
(To my way of thinking, I really see no difference between using the traditional use of tables, graphs, or charts for these kind of problems and this particular little program.)
http://davidmlane.com/hyperstat/z_table.html
Just enter the mean and sd, and then click on the suitable "between", "below" etc with the given values.
(To my way of thinking, I really see no difference between using the traditional use of tables, graphs, or charts for these kind of problems and this particular little program.)
Answered by
tom
223
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