Q.4 The probability density function for a continuous random variable X is 2 x; 0 ≤ x ≤K, 21 fx(x) = = 2 (6x) K < x < 6, 15 0 e. w. (i) Find constants K a so that it is a probability density function. (ii) Find cumulative distribution function (cdf), moment generating function (mgf). (iii) Using mgf, find ẞ₁ and ẞ2 and comment on it. (iv) Using cdf find P(2≤ x ≤ 5.5).

A First Course in Probability (10th Edition)
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Q.4 The probability density function for a continuous random variable X is
2
x;
0 ≤ x ≤K,
21
fx(x) =
=
2
(6x) K < x < 6,
15
0
e. w.
(i) Find constants K a so that it is a probability density function.
(ii) Find cumulative distribution function (cdf), moment generating function
(mgf).
(iii) Using mgf, find ẞ₁ and ẞ2 and comment on it.
(iv) Using cdf find P(2≤ x ≤ 5.5).
Transcribed Image Text:Q.4 The probability density function for a continuous random variable X is 2 x; 0 ≤ x ≤K, 21 fx(x) = = 2 (6x) K < x < 6, 15 0 e. w. (i) Find constants K a so that it is a probability density function. (ii) Find cumulative distribution function (cdf), moment generating function (mgf). (iii) Using mgf, find ẞ₁ and ẞ2 and comment on it. (iv) Using cdf find P(2≤ x ≤ 5.5).
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