An anthropologist examines the census data over the past 100 years to determine the growth of minority groups in the United States.

A) field observation

B) secondary analysis < I think it's this one

C) controlled experiment

D) hypothesis

Secondary analysis is like a re-analysis of data that was previously collected in an earlier study or experiment. Of course, the anthropologist hasn't been collecting the same data for 100 years, he/she is just one person.

"B" is the best answer.

I hope this helps!
~kaikers

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An anthropologist examines the census data over the past 100 years to determine the growth of minority groups in the United States. A) field observation B) secondary analysis < I think it's this one C) controlled experiment D) hypothesis

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An anthropologist examines the census data over the past 100 years to determine the growth of minority groups in the United States.

A) field observation

B) secondary analysis < I think it's this one

C) controlled experiment

D) hypothesis