The 100 members of an extracurricular club at a nearby college are subdivided into 6 groups based on ethnic identification. Since 40% of the club is Caucasian,
the researcher ensures that 40% of his sample is also Caucasian. The
researcher is using
sampling.
A. cluster
B. stratified
C. random
D. systematic

the anwser is d) 75°

step-by-step explanation:

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.

p

step-by-step explanation:

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.