SOLUTION: for a group of four men , the probability distribution for the number x who live through the next year is as given in the accompanying table. find out the mean and the standard dev

Algebra ->  Probability-and-statistics -> SOLUTION: for a group of four men , the probability distribution for the number x who live through the next year is as given in the accompanying table. find out the mean and the standard dev      Log On


   

Question 421764: for a group of four men , the probability distribution for the number x who live through the next year is as given in the accompanying table. find out the mean and the standard deviation
x | p(x)
0 | 0.0000
1 | 0.0001
2 | 0.0006
3 | 0.0387
4 | 0.9606
Answer by stanbon(75887) About Me  (Show Source):
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for a group of four men , the probability distribution for the number x who live through the next year is as given in the accompanying table. find out the mean and the standard deviation
x | p(x)
0 | 0.0000
1 | 0.0001
2 | 0.0006
3 | 0.0387
4 | 0.9606
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Using a TI-84 calculator:
Put x values in L1
Put p(x) values in L2
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Run CALC L1,L2 to get:
mean = 3.9598
std = 0.200958
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Cheers,
Stan H.
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