
Advanced Statistics Advanced Probability and Statistics Math Forum 
 LinkBack  Thread Tools  Display Modes 
May 5th, 2017, 01:52 AM  #1 
Newbie Joined: May 2017 From: Moscow Posts: 1 Thanks: 0  Shooting on a divided target
There is a target divided into 20 equal parts. The probability of falling into each of them is the same and is equal to 1/20. 15 shots are produced (we can hit one part several times). What is the probability that 8 parts will be shot through? P.s. A part is shot through when we hit on it at least one time. 
May 23rd, 2017, 02:12 AM  #2 
Senior Member Joined: Dec 2012 From: Hong Kong Posts: 853 Thanks: 311 Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics 
Let X be the number of parts that will be shot through. Then $\displaystyle X \sim Binomial(n = 15, p = 0.05)$. Can you continue?


Tags 
divided, shooting, target 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Newton Raphson Shooting Method  peterianstaker  Calculus  1  February 12th, 2015 08:06 AM 
In a shooting test, probability of hitting the target  rsoy  Probability and Statistics  2  October 12th, 2013 02:14 AM 
Riddle of the shooting Cyborgs  Infinity  Computer Science  4  October 29th, 2007 02:16 PM 