Question

for a given frequency distribution ,Z + M= 34 and M + x bar=40. Then find M

Answer 1

Answer:

19

Step-by-step explanation:

Given  

for a given frequency distribution ,Z + M= 34 and M + x bar=40. Then find M  

Z + M = 34

Z = 34 – M

M + X bar = 40

X bar = 40 – M

Z = 3M – 2X  bar

34 – M = 3M – 2(40 – M)

34 – M = 3M – 80 + 2M

34 + 80 = 3M + 2M + M

34 + 80 = 6M

114 = 6M

M = 114 / 6

M = 19