deliaa18dd deliaa18dd 28-09-2022 Mathematics Answered 20 plants were measured and their heights recorded in cm. Here are the heights: 8.5 12.6 13.2 17 11.1 7.7 4.8 9.9 13.5 15.6 17.4 14 12 14.7 9.5 9.8 10 11.3 5 10 15 6.9 5 please answer : a) and b)