Answer:
Stratified Random sampling
Step-by-step explanation:
When a random observations are selected from a number of individual groups in a particular population, the type of sampling technique is called Stratified Random sampling. Stratified Random sampling begins with the partitioning or splitting or a population into subgroups. A number of random selection are then made from each of the subgroups to form a collection of larger samples. This is different from the simple random sampling technique which makes random selection directly from a larger sample or population without prior partitioning of the population. The different grades of students represents the individual stratum from which random selections are made.
20 years in the future......
A graphing calculator can help find the number(s) that meet this requirement.
The number could be 15, or -14.
The area of one slice is roughly 14.13
The area of the whole pizza is 113.1
Divide that by 8
