Approved Answer

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 Approved Answer

Laxmi A answered on February 20, 2021

5 Ratings, (9 Votes)

a) Sex is a contant ,that is, female. Because the researcher is trying to get information on the yearly income and number of years of experience on all female doctors.

b)  here yearly income is a variable which is a kind of interval variable,  because it is based on one's tax returns, so it is different for different individuals.  the difference between the income of two female doctors are meaningful as we can know who is earning more.

c) ethnicity is nominal variable as it has no natural ordering.

d)  profession , here is constant , because research is conducted on all the female doctors, ignoring their speciality.  if speciality has been taken into consideration, then it would have been a nominal variable.

e)  number of years of experience is an interval variable.  this is because any female doctor may have any number of work experience and we can calculate by subtracting number of work experience for two female docotors , that who is having more experience.

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