ur answer is correct but i hv a confusion that all four shots fire at a time so there may be probability that all shots hits the craft. but ur assuming that first hit + first not hit * second hit+...... plz clear my confustion
On Mon, Aug 29, 2011 at 5:49 PM, Abhishek Yadav <[email protected]>wrote: > i guess it would be .... 0.7 + 0.3*0.6 + 0.3*0.4*0.5 + 0.3*0.4*0.5*0.4 > =.964.....correct me if i am wrong.?? > > On Mon, Aug 29, 2011 at 5:34 PM, Naman Mahor <[email protected]>wrote: > >> An anti aircraft gun can fire four shots at a time. If the probabilities >> of the first, second, third and the last shot hitting the enemy aircraft are >> 0.7, 0.6, 0.5 and 0.4, what is the probability that four shots aimed at an >> enemy aircraft will bring the aircraft down? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
