Question

If the mean of the dataset {10, 20, 30, x, 2x} is 36, find x

Answer 1

Answer:

x= 40

Step-by-step explanation:

Mean= sum of deviation /no of deviation

36 = 10+20+30+x+2x/5

36*5= 60+3x

180=60+3x

180-60=3x

120 = 3x

x= 120/3

x= 40