Please show the process.

From each section, 5 were randomly selected and their partial scores were checked. Red - 11, 8, 13, 12, 7 Orange - 12, 12, 12, 13, 12 Yellow - 11, 10, 10, 13, 13 Green - 12, 10.5, 13, 12, 10 Blue - 11, 12, 13, 10, 11 Indigo - 8, 11, 10, 13, 6 Violet - 10, 9, 13, 12, 11 Note 1: The sections were coded and randomly arranged for anonymity. _ Note 2: Only half point is given to correct answer which is spelled incorrectly. 1. Which section performed best? 2. Which section is the most homogeneous? 3. Which is the most heterogeneous