Mathematics, 22.06.2019 04:50
The random variable x has probability density function f (x) = k(βxΒ²+5xβ4) 1 β€ x β€ 4 or =0 1 show that k = 2/9 find 2 e(x), 3 the mode of x, 4 the cumulative distribution function f(x) for all x. 5 evaluate p(x β€ 2.5). 6 deduce the value of the median and comment on the shape of the distribution.
Answers: 3