If a school wants student opinion on the course registration process, would a systematic sample polling every tenth student to register, a stratified sample polling five students in each academic discipline, or a random sample polling any fifty students be most effective? why?

Stratified random sampling is based on a subdivision of the sample framework into strata with the help of an observable variable that separates them. After forming the strata, each individual is located in one and only one stratum. The sample is established by selecting a certain number of individuals in each stratum, guaranteeing a contribution of each stratum in the information obtained.

The best sampling method, in this case, is Stratified Random.

Step-by-step explanation:

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1