Marnie borrowed $1,300. she made 24 payments of $65.30 each. how much did she pay in interest? a. $65.30 b. $1,567.20 c. $267.20 d. $31.72

The random variable x has probability density function f (x) = k(−x²+5x−4) 1 ≤ x ≤ 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 ≤ 2.5). 6 deduce the value of the median and comment on the shape of the distribution.