In an natural observational study investigators
observe subjects and measure variables
of interest without assigning treatments to
the subjects
In an experimental study (inferential stat), data are used to make generalizations about a population based on a sample.
Hence the 1st question is an experimental.
My momma said the second one “citizens relative ability to purchase goods
<span>There are approximately 10 decigrams per each gram, so that means in 100 grams there are exactly 1,000 decigrams. I came to the conclusion that the hamster weighs 1,000 decigrams, and if the hamster eats all 200 decigrams he will weigh approximately 1200 decigrams.</span>
B. Would be the correct answer.
The person who founded mercantilism was very big about world trades.
Hope I helped, and good luck!
Attached below is a Railroad crossing sign.
As you can see, it is a circle.