Javier has a store that sells t-shirts Each month he receives a new batch of t-shirts and puts them for sale. From the data that he collected in the previous month, he made a scatter diagram of the number "T" of the t-shirts that were unsold at the end of each working day of the month. He then found that the equation of the line of best fit is T = 245 - 8d. Which of the following is the meaning of the value 245 in this context? o Javier will sell all the t-shirts of the month in approximately 245 working days

o Javier sells approximately 245 t-shirts per day

o Javier started the month with approximately 245 t-shirts for sale

o Javier sells approximately 245 t-shirts per month

d) -1

step-by-step explanation:

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.