This is only multiple choice. Provide only a brief explaination thank you.

.__5. If the variance of a dataset is correctly computed with the formula using (n - 1) in the denominator. which of the following option is true? A. Dataset is a sample B. Dataset is a population C. Dataset could be either a sample or a population D. Dataset is from a census E. None of the above 6. For the below normal distribution. which of the following option holds true ? ol. o2 and 03 represent the standard deviations for curves 1, 2 and 3 respectively. 2 3 40 80 100 120 140 160 A. ol> 02> 63 B. ol