Round to the nearest given place.
1.94155 thousandths

2

Step-by-step explanation: You round up when the number is 5 or higher. In this case since it’s 1.9, you can just round to 2

Round off 1.94155 to thousands, when you place each of the decimal fraction into their place value you will discover that 9 is tenth, 4 is hundredth and 1 is thousandth. Since the number that follows 1 being the thousandth is 5 you will need to round up 5 to become 1 and add to the 1 in thousandth to become 2. Therefore the answer is 1.942

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.

12cm

the answer is d