Answer:
Stratified Sampling
Step-by-step explanation:
Since Keri divides the day into different strata and each unit is selected from each strata randomly. So, it is Stratified Sampling.
Further, In Stratified Sampling population is divided into several groups such that within the group it is homogeneous and between the group it is heterogeneous. And now a selection of each stratum and unit has an equal chance of selection.
Answer:
3, -1
Step-by-step explanation:
because that is the point that is at the center :)
Step-by-step explanation:
just subtract it
answer is 122.709
Answer:
B
Step-by-step explanation:
