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Solution
- 1. Solution:
1.
a. P(A2)
186/400
b. P(NnA2)
P(N) . P(N/A2)
(186/400) x (104/186)
104/400
P(N) + P(A2) - P(NnA2)
(186/400) + (200/400) β (104/400)
(386/400) β (104/400)
282/400
P (R1n). P(R2n / R1n)
(186/400). (185/399)
c. P(NUA2)
d. P (R1n & R2n)
2.
a. P(H)
178/1000
b. P(FnH)
c. P(FUH)
P(F) . P(F/H)
(178/1000) x (116/1000)
116/1000
P(F) + P(H) - P(FnH)
(178/1000) + (500/1000) β (116/1000)
(678/1000) β (116/1000)
562/1000
a. P(HY)
43/58
b. P(HW)
37/58
3.
c.
P(HWnHY)
d. P(HWUHY)
e.
P(HY/HW)
P(HW) . P(HY/HW)
(37/58) x (32/37)
32/58
P(HW) + P(HY) - P(HWnHY)
(37/58) + (43/58) β (32/58)
(80/58) β (32/58)
48/58
32/37