生物模拟问题xh38(2)
那个d是0，写下怎么办，没有这种植物就写下，所以植物很多。确保没有错误？
N=5.5+0.1+2.3=7.9
n(A)/N=5.5/7.9=0.7
N(B)/N = 0.1/7.9 = 0.013
n(C)/N=2.3/7.9=0.3
d = 1/(0.7 * 0.7+0.013 * 0.013+0.3 * 0.3)
=1.724
直接进去吧
N=5.5+0.1+2.3=7.9
n(A)/N=5.5/7.9=0.7
N(B)/N = 0.1/7.9 = 0.013
n(C)/N=2.3/7.9=0.3
d = 1/(0.7 * 0.7+0.013 * 0.013+0.3 * 0.3)
=1.724
直接进去吧