Two signs are posted on a haunted house. First sign says no one under 5 allowed. Sign 2 says no one under 8 allowed without a parent. Inside the haunted house you find a child with his parent. What can you deduce about the age of the child based on the house rules.

You can deduce that the child is under 8 years old, but older than 5 years old

Step-by-step explanation:

The question states that there is a sign saying that no one under 5 is allowed inside. Because we know that the child is indeed inside the house, he must be older than 5. The question also states that the child is with his parents. We know that there is a second sign saying that no on under 8 is allowed without a parent. This lets us know that the child must be under 8, as he is with his parents in the house. Therefore you can deduce that the child is under 8 years old, but older than 5 years old.

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.