Hey there :)
The given are 104, 137, 154, 131 and we have to find x
The mean value is 130
Mean = sum of all values divided by total number of values
130 = [tex] \frac{104+137+154+131+x}{5} [/tex]
130 x 5 = 526 + x
650 = 526 + x
124 = x
Your answer will be option A) 124
