Probability and Statistics Basic Probability and Statistics Math Forum

 February 29th, 2016, 11:33 PM #1 Newbie   Joined: Feb 2016 From: Europe Posts: 1 Thanks: 0 X~N(2,2) Calculate probability P(|X-1|<2) Hi This should be "easy task" like looking the table from "normal distribution's cumulative distribution function": -> https://en.wikipedia.org/wiki/Standard_normal_table Normal distribution X~N(2,2) calculate probability P(|X-1|<2) ? Clue= transform to "standard normal distribution" ANSWER= 0.744 March 5th, 2016, 04:10 AM #2 Math Team   Joined: Jan 2015 From: Alabama Posts: 3,264 Thanks: 902 Do you have a question? Are you asking if your answer is correct? |X- 1|< 2 is the same as -2< X- 1< 2 which is the same as -1< X< 3. With mean 2 and standard deviation 2, X= -1 corresponds to the "standard normal" variable z= (-1- 2)/2= -3/2 and X= 3 corresponds to z= (3- 2)/2= 1/2. What are the probabilities N(z< -3/2) and N(z< 1/2)? Thanks from adamwlev Tags calculate, probability, p|x1|<2, p|x1|<2, xn2 Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post Parlo Probability and Statistics 1 July 30th, 2014 06:12 PM decly Advanced Statistics 4 December 27th, 2011 02:54 AM nossrannug Probability and Statistics 4 April 18th, 2011 03:20 PM Geteburg Advanced Statistics 0 February 8th, 2010 08:19 AM

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