A) 0.25
B) 0.21
C) 0.16
D) 0.6976
Correct Answer: D
Solution :
Let \[{{p}_{1}}=0.4,\] \[{{p}_{2}}=0.3,\] \[{{p}_{3}}=0.2\] and \[{{p}_{4}}=0.1\] \[P\](the gun hits the plane) \[=P\] (the plane is hit in once) \[=1-P\] (the plane is hit in none of the shots) \[=1-(1-{{p}_{1}})(1-{{p}_{2}})(1-{{p}_{3}})(1-{{p}_{4}})\]\[=0.6976\].You need to login to perform this action.
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