Please show work, thank youHomework Answers
Simpson's reciprocal of 65 year old stand = 1/D
where D = summation of [ n(n-1)] / N(N-1)
We have to calculate n(n-1) for each species
the values of n(n-1) for different species from Douglas Fir to Wild Cherry are
15*14 , 47*46 , 9*8 , 0 , 0 , 0 , 0 , 3 * 2 , 12*11 , 0
= 210 , 2162 , 72 , 0 , 0 , 0 , 0 , 6 , 132 , 0
summation of n(n-1) = 210+2162+72+6+132 = 2582
Now,
N = summation of n = 15+47+9+1+3+12+1 = 88
So , N(N-1) = 88*87 = 7656
Hence, D = 2582 / 7656 = 0.34
So,
Simpson's Reciprocal index = 1/D = 1/0.34 = 2.9
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47
167
12.9
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ONLINE
47
167
16.1
5
ONLINE
44
165
14.2
5
GROUP
43
137
16.6
4
NONE
34
184
12.5
4
GROUP
36
173
14.3
4
GROUP
44
160
14.1
4
NONE
34
132
18.2
4
NONE
48
182
14.1
4
ONLINE
41
158
13.8
4
GROUP
38
163
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GROUP...
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Sales (Y)
Calls (X1)
Time (X2)
Years (X3)
Type
47
167
12.9
5
ONLINE
47
167
16.1
5
ONLINE
44
165
14.2
5
GROUP
43
137
16.6
4
NONE
34
184
12.5
4
GROUP
36
173
14.3
4
GROUP
44
160
14.1
4
NONE
34
132
18.2
4
NONE
48
182
14.1
4
ONLINE
41
158
13.8
4
GROUP
38
163
10.8
4
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