Carry all decimals until you reach your answer, then round to four decimals
Find the probability that between 4 and 9, exclusive, of the recently deceased died due to heart disease. |
Find the probability that less than 4 of the recently deceased died due to heart disease.
x | P(x) | xP(x) | x^{2}P(x) |
0 | 0.03333 | 0.0000 | 0.0000 |
-9 | 0.00417 | -0.0375 | 0.3375 |
-74 | 0.00056 | -0.0411 | 3.0422 |
-359 | 0.00014 | -0.0499 | 17.9001 |
-1109 | 0.00006 | -0.0616 | 68.3267 |
-2599 | 0.00003 | -0.0722 | 187.6334 |
1 | 0.96172 | 0.9617 | 0.9617 |
total | 0.6994 | 278.2017 | |
E(x) =μ= | ΣxP(x) = | 0.6994 | |
E(x^{2}) = | Σx^{2}P(x) = | 278.2017 | |
Var(x)=σ^{2} = | E(x^{2})-(E(x))^{2}= | 277.7124 | |
std deviation= | σ= √σ^{2} = | 16.6647 |
1)
expected lottery profit =0.6994
2)standard deviation =16.6647
((please provide sample size for question 3 and 4)
Carry all decimals until you reach your answer, then round to four decimals Find the probability...
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