A cluster sample is one in which the population is divided into groups and a random sample of groups is drawn.
Answer:
0.407
Step-by-step explanation:
8.14÷20 which equals 0.407 hdjdnfbdn
Mathematics and science go hand in hand. The branches of science which include: Physics, astronomy, chemistry, biology, etc. In all these fields you will find that you will have to use the mathematical principles and formulae to solve the numerical problems. So, science needs maths but maths does not need science.
Answer:
both linear and nonlinear