In: Computer Science
A random variable (RV), x is distributed with a pdf as follows:
fX(x) = [C × x × (1 – x)] 0 ≤ x ≤ a (C and a are constants)
= 0 otherwise
Hence, determine the following: (i) C; (ii) cumulative probability of x in the range, [(u × a) ≤ x ≤ (v × a)]; where u and v are fractions; (iii) E[x]; (iv) second moment of x ; and, (v) standard deviation of x. Assume: a = 1, u = 0.5 and v = 0.75
Hence, choose the correct set of answers in the multiple-choices listed:
Multiple-choices on the answer-set
Choices |
(i) C |
(ii) cdf [ua ≤ x ≤ va] |
(iii) E[x] |
(iv) m2 |
(v) sigma(x) |
1 |
1.5 |
0.4458 |
0.75 |
0.35 |
0.250 |
2 |
1.6 |
1.3435 |
0.60 |
0.55 |
0.254 |
3 |
1.0 |
0.3438 |
0.50 |
0.30 |
0.224 |
4 |
1.0 |
0.3466 |
0.51 |
0.32 |
0.124 |
5 |
0.8 |
0.1458 |
0.45 |
0.22 |
0.324 |