standard_description: Recognize the purposes of and differences among sample surveys, experiments, and observational studies; explain how randomization relates to each.
problem_activity: Problem 1
After watching
Why Statistics
from the U.S. Census Bureau and
Why You Need to Study Statistics
from
This is Statistics,
what is statistics and how can it be applied?
Problem 2
Below are two data representations. How are these representations similar? Different?
[IMG]
[IMG]
Problem 3
Aaron wanted to answer the question “How old are people in Boston?” He accessed this data from the US Census Bureau:
[IMG]
Aaron looked at the data and was unsure of how to answer his question. He summarized the data from the table above into the histogram below.
[IMG]
How would you answer Aaron’s question based on the histogram of data?


aligns: no