Adam and Martha each performed a simulation. Adam's simulation He tossed a fair coin 4 times. Each time the coin landed with tails face up. Martha's simulation She randomly chose 1 block from each of two bags containing blocks. Each block she chose was labeled with the letter R. The probability for both Adam's and Martha's simulation were the same. Which two bags could be the ones Martha used in her simulation? 40 POINTS PLS HELP

idk

step-by-step explanation:

idk

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

i think the answer is b.

step-by-step explanation:

not 100% sure though.