1. In general, the sample mean is a better estimator of thepopulation mean for larger sample sizes.
2.
If events  A and  B are not mutuallyexclusive, then it is possible that  P( A)+  P( B) > 1.
3.
What method of data collection would you use to collect data fora study where a drug was given to 95 patients and a placebo toanother group of 95 patients to determine if the drug has an effecton a patient's illness?
| | designed experiment |
| | observational study |
| | published source |
| | survey |
