Answer:
The problem described in this excerpt is the academic competition African girls face in public schools.
Explanation:
The excerpt from "wheels of change" focuses on the African female student and what stands in the way of her education, in comparison to the male student.
It highlights the amount of chores the African female students have to do, the time limitations imposed by these chores and the nature of the chores, such as taking care of younger siblings, something the male child isn't asked to do.
The excerpt shows the academic competition that African girls face while trying to attend school.
If you are talking about Nazi German its because Hitler didn't like them and they went to concentration camps (wouldn't mind brainliest)
Answer:
They should tested more people
Explanation:
To conduct an experiment, they have to collect many data, repeating the experiment multiple time, design the study etc .
The method used in this scenario is wrong, the outcome of their experiment is based on one sample and the experiment was only conducted once with test of validity.
The result gotten this research may had been because of preference in their reading environment
Joe might like listening to music while he studied which gives him edge to performed well.
Before they can come to a conclusion, they have to involve many individuals in the study