3. Research has suggested that IQ alone may not be sufcient for a happy successful life. Angela Duckworth has led research suggesting that "grit" may be as important as IQ! Grit is \"perseverance and passion in the pursuit of long term goals" and, as part of the research, a \"grit scale" was developed. (You can meet Angela Duckworth here [a about 6 minutes, not necessary for the tutorial, but you may nd it interesting. You can estimate your own grit here r:- .) Grit scores are continuous between 0 and 5, with higher scores indicating greater grittiness. The percentiles of the distribution in the general population are given in the following table. Percentile Male Female 10 2.51 2.51 20 2.83 2.88 30 3.06 3.13 40 3.25 3.25 50 3.38 3.50 60 3.54 3.63 70 3.75 3.79 80 3.92 4.00 90 4.21 4.25 100 5.00 5.00 (a) What are the median grit scores for males and females? (b) if Marvin is the ultimate in IQ, then the ultimate in grit is Rick :3- he is never going to give you up! Rick scored 4.21 on the grit scale. Where does this place his grittiness relative to the general population