Answer:
how rough it is as and kinda dry
In macroeconomics, a variety of economy-wide phenomena is thoroughly examined such as, inflation, price levels, rate of growth, national income, gross domestic product and changes in unemployment.( It focuses on trends in the economy and how the economy moves as a whole)
Answer:
Sample mean
Symbol: 
Step-by-step explanation:
Given



Solving (a): Is it sample mean or population mean
From the question, we understand that 10 were selected from a total of 30.
And the mean of the selected 10 is 5'2"
The selected 10 is referred to as sample and the mean of the 10 is the sample mean
Solving (b): Symbol to use.
The symbol for sample mean is: 
135 times because 675 divided by 5 is 135. you would divide the number of her heart beats by the number