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probability of salary arriving on a friday

Jesus Angeles
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Joined: Feb 26, 2005
Posts: 2057
This one is easy; just came up on a lazy prod support 3rd shift.

Most of us get paid twice a month. And if the 15th or end of month falls on a weekend, the salary is paid on the friday.

Why is it that it seems that salary arrives more often on friday than any other day?

Show the reason why, as a probability.
Sam Codean
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Joined: Feb 26, 2006
Posts: 194
Probability of Salary Day being a Monday = 1/7
Probability of Salary Day being a Tuesday = 1/7
Probability of Salary Day being a Wednesday = 1/7
Probability of Salary Day being a Thursday = 1/7
Probability of Salary Day being a Friday = prob(Fri) + Prob (sat) + Prob(Sun)
= 1/7 + 1/7 + 1/7
= 3/7

Hence you feel that the salary mostly arrives on a Friday


-Sam Codean<br />SCJP 1.4 (98%)<br />SCJD 5.0 (87.5%)
Jesus Angeles
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Joined: Feb 26, 2005
Posts: 2057
I think so too. Too easy isnt it?
Sam Codean
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Joined: Feb 26, 2006
Posts: 194
Frankly, Yes
Shaan Shar
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Joined: Dec 27, 2005
Posts: 1249

Yes this is the right solution that's why we usually thinks that we get our salary mostly on friday.










For new upcoming salary which I really got this month also on Friday. So that's why we use to celebrate "Good Friday.
Isn't it.


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