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(Solved): A random variable (RV), x is distributed with a pdf as follows:   fX(x) = [C x (1 ...



A random variable (RV), \( \mathrm{x} \) is distributed with a pdf as follows:
\( f_{x}(x)=[C \times x \times(1-x)] \quad 0 \

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 = 1.15, u = 0.58 and v = 0.86.

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

6.446

0.2838

0.450

0.223

0.141

2

6.570

0.2735

0.451

0.255

0.154

3

6.711

0.2652

0.510

0.231

0.165

4

6.481

0.2877

0.452

0.227

0.150

5

6.802

0.2858

0.455

0.233

0.164

A random variable (RV), \( \mathrm{x} \) is distributed with a pdf as follows: \( f_{x}(x)=[C \times x \times(1-x)] \quad 0 \leq x \leq a \) \( =0 \quad \) otherwise (C and a are constan Hence, determine the following: (i) C; (ii) cumulative probabilit) a)]; where \( u \) and \( v \) are fractions; (iii) \( E[x] \); (iv) second moment of Assume: \( \mathrm{a}=1.15, \mathrm{u}=0.58 \) and \( \mathrm{v}=0.86 \). Hence, choose the correct set of answers in the multiple-choic Multiple-choices on the answer-set


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a) The value of c here is computed using the property that the sum of all probabilities should be 1. Thus, we have here: ?01.15c×x(1?x) dx=1 Note that
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