Yin likes to ride her bike on the weekends. She keeps track of how long she rides and the distance of each ride. The table below shows some of her trips. trip number time spent riding (hours) distance traveled (miles) 1 0.5 6 2 2.0 12 3 3.5 42 4 5.0 60 Which trips represent the same proportional relationship? Select one: 1, 2, 3 2, 3, 4 1, 3, 4 1, 2, 4

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.

which expression represents the approximate length of bc?

step-by-step explanation:

idk u tell me

step-by-step explanation:

answer: i dont know i want points

step-by-step explanation: