Why is it important to check the 10% condition before calculating probabilities involving x¯?

a. To reduce the variability of the sampling distribution of x¯

b. To ensure that the distribution of x¯ is approximately Normal

c. To ensure that we can generalize the results to a larger population

d. To ensure that x¯ will be an unbiased estimator of μ

e. To ensure that the observations in the sample are close to independent

Select the best answer.