1927-13814 3D WEEKMHURSEAveragetidenshon-the rear of rue Observations

1.	1927-13814 3D WEEKMHURSEAveragetidenshon-the rear of rue Observations &DB 246 and 378 is II thenI the recons of the last three--معهعههPenseSom ofnumbertheofobservationthe observationLORtbt at's
Answer» average Mean = sum of observations / No. of observations 11 = (x + (x+2) + (x+4) + (x+6) + (x+ 8))/5 55 = 5x + 20 5x = 55 - 20 = 35 x = 35/5 = 7 Therefore mean of last 3 observations= (x + 4) + (x + 6) + (x + 8)/3= 3x + 18/3= x + 6= 7 + 6 = 13

1927-13814 3D WEEKMHURSEAveragetidenshon-the rear of rue Observations &DB 246 and 378 is II thenI the recons of the last three--معهعههPenseSom ofnumbertheofobservationthe observationLORtbt at's

Answer»

average

Mean = sum of observations / No. of observations

11 = (x + (x+2) + (x+4) + (x+6) + (x+ 8))/5

55 = 5x + 20

5x = 55 - 20 = 35

x = 35/5 = 7

Therefore mean of last 3 observations= (x + 4) + (x + 6) + (x + 8)/3= 3x + 18/3= x + 6= 7 + 6 = 13