Question

for a given frequency distribution ,if x bar =18and M=22,then Z=________​

Answer 1

Answer:

30

Step-by-step explanation:

Use this formulae

3M=2x-Z

Answer 2

Step-by-step explanation:

x bar =18,M=22 and Z=

so,

3m=2x bar - z

3(22)=2(18) - z

66=36 - z

66-36=z

30=z

so,

answer is

Z=30