The factors were latitude, elevation, nearby water, and ocean curents. All of these factors affect earth's climate.
If she is number 8 in line and you add 4.
If the first student says 7, then Jenna would end up being 35. The answer is B. 35
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Since we wish to test the null hypothesis that gender and personal goal are independent. Under the said null hypothesis, the expected number of boys that would select "be good at sports" would be the same more or less with the girls that would select "be good at sports". The difference in their means would be set to zero for this null hypothesis.
Professionals that study and make predictions about human population are called demographers.