all students = 150
M = 60
S = 45
M and S = 25
(a) At least one of the two requirements:
M or S = M + S - (M and S) = 60 + 45 - 25 = 80
(b) Exactly one of the two requirements:
(M or S) - (M and S) = 80 - 25 = 55
(c) Neither requirement:
(all students) - (M or S) = 150 - 80 = 70
Answer:
1. Immune
Step-by-step explanation:
Answer:
D
the first one obviously isnt random
the second one is selective then random
the third one is also selective
the fourth one is random
The correct answer is 0.78. Hope this helps.
