. A study was conducted to test the effectiveness of a novel radiographic method at demonstrating patellar instability. Ninety (90) subjects were involved in the study and ranged in age from 13 to 52 years. The subjects were divided into four groups on the basis of clinical findings regarding the nature of the instability of the knee: normal (no symptoms or signs related to the knee), lateral, medial, and multidirectional instability. The table below provides the data collected on the radiographic measurements of the congruence angle (degrees) for subjects in each group. Use these data to answer the questions below the table. Norma Latera Me- 13 Mu tI - Irectlona 8 4 16 15 16 18 25 26 22 5 20 8 2 . . : 12 8 32 8 40 12 30 14 20 : 10 14 1 . 12 28 4 34 20 6 20 14 20 9 20 6 5 10 20 35 10 20 22 24 4 9 15 25 2 10 10 10 6 12 5 16 7 0 5 30 O 35 6 30 2 1 15 15 5 25 5 22 10 22 20 12 10 8 5 8 10 20 12 5 14 10 a. Create one box and whisker plot that compares the distribution of radiographic measurements across the 4 groups. Comment on the shape of the data