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kenken2583
01.07.2021 •
Mathematics
The thickness X of aluminum sheets is distributed according to the probability density function f(x) = 450 (x2 - x) if 6 < x < 12 0 otherwise 5-1 Derive the cumulative distribution function F(x) for 6 < x < 12. The answer is a function of x and is NOT 1! Show the antiderivative in your solution. 5-2 What is E(X) = {the mean of all sheet thicknesses)? Show the antiderivative in your solution.
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Ответ:
Solution :
Given :
1. Cumulative distribution function
2. Mean![$E(x) = \int_{- \infty}^{\infty} \ x \ f(x) \ dx$](/tpl/images/1387/3613/4ce2b.png)
= 17.2857
Ответ:
2 hours
Step-by-step explanation:
4 + 8 + 11 + 7 = 30
0 0 0 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3
cancel from each side until you reach the middle
your answer should be 2