Answer:
Accidental errors.
Explanation:
As the exercise explains, a random/accidental error remains in after mistakes and have been eliminated. They are caused by factors beyond the control of the observer. They are present in all surveying observations. This type of error usually result from human mistakes or accidental errors. The latter type are errors caused by changing experimental conditions, out of the control of the individual doing the study or experiment. It's hard to quantify how "disastrous" they can be given that most of the times it depends on the context of the study.
Answer:
1st one (I THINK DON'T BASE YOUR ANSWER ON MY OPINION PLEASE.)
Explanation:
A is microeconomic because they are considering the slots of only one airport.
B is macroeconomic because this decision will afect each and every person in the country.
C is microeconomic because it will only affect certain employees in the stores.
D is macroeconomic because this will affect every person that is unemployed at the moment.