Answer: Simple random sampling
Step-by-step explanation:
Given: A market researcher obtains a list of all streets in a town. She randomly samples 10 street names from the list, and then administers survey questions to every family living on those 10 streets.
Since she randomly samples street names , therefore the type of sampling is simple random sampling.
- A simple random sample is a sample that is a subset of the population the researcher surveyed selected in a way such that all the individuals in the population has an equal chance to be selected.
The answer is B. They are saying to cube the difference therefore you have (x-43) cubed
She has 38 balloons altogether
Exponent hope this helps m8
X+20=104
-20 -20
0. 84
X=84