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A policeman fires 6 bullet on …

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A policeman fires 6 bullet on a dacoit . The probability that the dacoit will be killed by a bullet is 0.6 . What is the probavility that the daciot is still alive .

Posted by Sourabh Rathee 7 years, 10 months ago

CBSE > Class 12 > Mathematics

2 answers

Vineet Gupta 7 years, 10 months ago

Let's S be event that dacot died And F be event that dacot not died Here X = {0,1,2,3,4,5,6} N=6 P(s) = 0.6 P(f)= 0.4 If none of bullets will hit him then only dacot will live Hence required probab is P( X =0) P(X=0) = 6c0 * (S)^0 *(F)^6 As 6c0= 1 Required probability is (0.4)^6

Jin Kazama 7 years, 10 months ago

goli mar ke dekh le pta chal jaega

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