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.
Answer:
6+y
Step-by-step explanation:
simple:)
Answer:
Step-by-step explanation:
The first term of the sequence is
To find the second term add 
to the first term;
To find the third term add to the second term;
To find the fourth term add to the third term;
The first four terms are
Answer:
C. None of The Above
Step-by-step explanation:
The peak is at 2 years, not 4. And there is no gap.
