My Solution::

b i) no answer

b ii) no answer

b iii) no answer

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- July 10th 2007, 06:57 AMlittlemissyneed help on probability
My Solution::

b i) no answer

b ii) no answer

b iii) no answer - July 10th 2007, 11:19 AMCaptainBlack
You should have a table of the standard normal distribution.

Let , where is the time a punter spends in the casino in minutes, then has a standard normal distribution.

a) That corresponds to

If you have a table of the cumulative standard normal you can look up on that table to tell you but .

b) That corresponds to or

If you have a table of the cumulative standard normal you can look up on that table to tell you and to tell you , then

RonL - July 11th 2007, 02:58 AMbadboychow
Quention 2 is hard for me....sorry cant help