Statistical sampling techniques are the strategies applied by researchers during the statistical sampling process.
Sampling considerations: 
- Larger sample sizes are more accurate representations of the whole.
 
- A sampling strategy made with the minimum of bias is the most statistically valid.
 
- Most approaches assume that the parent population has a normal distribution where most items or individuals clustered close to the mean, with few extremes.
 
WHy do you think larger samples are more representative?