Researchers studied 600 people and matched their personality type to when in the year they were born. they discovered that the number of people with a"cyclothymic" temperament, characterized byrapid, frequent swings between sad and cheerfulmoods, was significantly lower in those born in the spring. the study also found that those born in the summer were less likely to be excessively positive, while those born in winter were more likely to be depressive. complete parts(a) through(c) below.(a)what is the research question the study addresses? (b)what is the sample? (c)what type of variable is the season in which you were born?