Question 844636
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Hi,
5	0.12	0.6	3
6	0.23	1.38	8.28
7	0.4	2.8	19.6
8	0.12	0.96	7.68
9	0.09	0.81	7.29
10	0.04	0.4	4
	    m = 6.95	49.85
		48.30	-48.30
			1.55
			1.24  SD
75% of time
z = .6745 = (x-6.95)/1.24 , x = 7.79 0r 8 rounded Up to nearest whole number
75% of the time there can be as many as 8 cars daily to be washed
TWO service points:  if they all come at once...

Re Reply: <u>three independent projects</u>  
Each of the three projects has probability of being profitable equal to 0.5
P(knowing that two of the three projects indeed bring profit,  that the third project is profitable) = .5