3. The following table shows the demography of student population in a state uni

Question

3. The following table shows the demography of student population in a state university African American Native American Pacific Islander Asian Hispanic White Other 9023 3218 2422 465 123 10621 658 a. Determine the probability for each ethnic group. (in percentage, one digit after decimal) African American Native American Pacific Islander Asian Hispanic White Other b. If one student is selected, what is the probability that this student is an Asian or Hispanic American? If two students are selected, what is the probability that one is an African American and the other one is a Native American? c.

Explanation / Answer

from above:

adding all frequency ; probability for a group =(frequency/total frequency)*100

hence

a)

b) probability=P(Asian)+ P(Hispanic)=9.1+12.1 =21.3%

c)probability =P( first is African American & second is native Amercian+first is native Amercian & second is African American)=(34%*1.8%+1.8%*34%)=1.19%

African native pacific American Asian Hispanic American Isnalander White Other 34.0% 12.1% 9.1% 1.8% 0.5% 40.0% 2.5%

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