Which of the following combinations results in an increase in sample size in a sample for variables?

a.

b.

c.

d.

Which of the following combinations results in an increase in sample size in a sample for variables? O a. Tolerable Error Expected Errors Variability Increase Decrease Increase O b. Tolerable Error Expected Errors Variability Decrease Variability Increase . Tolerable Error Increase Increase Tolerable Error Decrease Expected Errors Decrease Expected Errors Increase O d. Variability Increase Increase