a
b
c
d
e
1
P(X = 2) = 0.224 P(X = 1) = 0.3033 P(X = 0) = 0.3012    
2
P(X = 5) = 0.1008 P(X = 1) = 0.3476 P(X < 3) = 0.6767    
3
0.1680 0.1992 0.3528 0.3347  
4
0.1377 0.062 0.7149    
5
0.1465 0.5665      
6
Events are given as a rate, are independent and cannot occur simultaneously. P(N ≥ 1) = 0.9502 P(N ≥ 1) = 0.9975 1.535 hectares  
7
1.6 (i) 0.2019 (ii) 0.1378 (iii) 0.2167  
8
0.3347 0.4422 1.5 1.5 1.22 (to 3 sig. figs.)