Item Analysis - ECE 270 Lab Quiz 5 - Spring 2019 1. ( 41.5%) Cost of minimal sum of products... 2. ( 41.2%) Cost of minimal product of sums... 3. ( 28.6%) Fewest number of 2-input NAND gates... 4. ( 45.2%) Fewest number of 2-input NOR gates... 5. ( 58.5%) Fewest number of 2-input open-drain NAND gates... Overall average: 42.99%