0.2+0.4+0.6+0.8=2
0.10+0.12+0.14+.+0.98
=(0.10+0.98)*((0.98-0.10)/0.02+1)/2
=24.3
0.2+0.4+0.6+0.8+0.10+0.12+0.14+.+0.98=26.3