Each day, Hugo runs some laps around the school track and then does a cool-down routine. Laps 7. 8 9 10 11

Time (min)35384245.5 49.5

What does the y-intercept of a trend line for this data represent?

A. total time spent exercising

B. average time to run one lap (not this one)

C. average time spent on the cool-down routine

D. average number of laps run

please explain why, please

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.

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step-by-step explanation:

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step-by-step explanation: