Answer: observational study
Step-by-step explanation:
The main purpose of an observational study is to describe a group of individuals or to investigate an association between two variables. We can answer questions about a population with an observational study. Hope it helps you if not sorry
Answer:
literacy rate
reasearchers know hot to read and write
i think one which is where x=-6
<u>-------------------------</u>
<u>hope it helps..</u>
<u>have a great day!!</u>
a diagram is necessary. please provide a diagram.
