Question

find the mean ( x1) 5 8 10 15 18 20 (f1) 2 3 5 4 4 2​

Answer 1

Answer:

Mean is 12.8

Step-by-step explanation:

Sum of f1*x1= 5*2+8*3+10*5+15*4+18*4+20*2=256

Sum of f1=2+3+5+4+4+2=20

Mean = 256/20=12.8

Answer 2

Answer:

Mean=12.8

Step-by-step explanation:

Full solution is in the image....

Hope you find this helpful