Answer:
Answer: D
Step-by-step explanation:
A) he only ask the people most likely to go
B) only his family not his neighborhood
C) Voluntary so it wont be accurate as much
D) Makes the most sense with all of the above
hes is using Random sampling is a procedure for sampling from a population in which (a) the selection of a sample unit is based on chance and (b) every element of the population has a known, non-zero probability of being selected. his entire neighborhood to see how often the people there go to the pool
Systematic sampling: is a type of probability sampling method in which sample members from a larger population are selected according to a random starting point but with a fixed, periodic interval. This interval, called the sampling interval, is calculated by dividing the population size by the desired sample size.
