The drying rate in an industrial process is dependent on many factors and varies according to the following distribution.

minutes relative frequency
13 0.22
14 0.36
15 0.28
16 0.10
17 0.04

if this following sequence represents a simulation of 5 random numbers trials, r (0 less or equal thanrless or equal than1), what is the average drying time: r1 = 0.13 ; r2 = 0.09 ; r3 = 0.19, r4 = 0.21 , and r5 = 0.22.

The answer is idk yo

Ok here we go ..there are plenty of ways to solve such math problems but we will go for the smartest and easiest ..5x+2y=7  -2x+6y=9we rearrange them into the following ..by multiplying the 1st equation by 2 it becomes 10x + 4y = 14we rearrange it and so it becomes 10x = 14 - 4yas for the second equation we multiply it by 5 and rearrange it so it becomes as to the following ..-10x + 30y = 45rearranging so 10x = 30y -45now 10x equals both 14 - 4y and 30y -45so   14 - 4y = 30y -4531 = 26yy= 31/26 = 1.19 or around 1.2so by now we can calculate x easily as  -2x+6y=9so 2x = 6y -9 = 6 * 31/26 - 9 = -1.84  then x = - 0.92 or around -0.9best luck!