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.
A) Yes, the two events are independent because P(NF|PB) = P(NF).
Answer:
1.908
Step-by-step explanation:
Assuming you are going at a base of 10,
㏒81 = 1.908, just use a calculator
That would be B, C and E.
A and D could be a rhombus.