Normal approximation to compute the probability, Civil Engineering

Normal approximation to compute the probability:

A lot contains 100 articles of which 10 are defective. The lot is rejected if a random sample of 10 articles drawn from the lot contains more than 2 defectives. Use normal approximation to compute the probability that the lot is accepted.

Solution:

Let X represents the number of defective articles in the sample. The variable X follows the hypergeometric distribution with parameters

N = 100,n - 10,M = l0 and has E(X) = 10.(10/100) = 1 and

V(X) =σ2 = 10.10/100.(1-(10/100)) (100-10/100-1) =9/11

The required probability is

903_Normal approximation to compute the probability.png

Posted Date: 1/31/2013 5:40:41 AM | Location : United States







Related Discussions:- Normal approximation to compute the probability, Assignment Help, Ask Question on Normal approximation to compute the probability, Get Answer, Expert's Help, Normal approximation to compute the probability Discussions

Write discussion on Normal approximation to compute the probability
Your posts are moderated
Related Questions

Question Spacing of manholes in straight sections for diverse pipe sizes is stated in Storm water Drainage Manual. How are figures arrived on? Answer For pipe size

i have three civil engineering fluid mechanics. 1 manometer problem 2 estimate the discharge for a channel 3 pipe system - direction of flow in line and what the value of flow in l

Q. Case of Multi speed restrictions? Position of Engineering indicators in case of Multi speed restrictions on one of the line in a Double line section where the first speed re


Define Diving Operation - Preparation for underwater inspection? Use of experienced divers trained and screened by a reputed commercial diving school is critical for successful

what is the permissible limit of sand

Differentiate between Short Column and Slender Column Short Column It is a column of  rectangular section, the effective length of which does not exceed 12 times of  its lea

Consider a market with one stock and one money market account, with the same assumptions on parameters (such as r, µ and s 2 ) as in the derivation of the Black-Scholes formula giv

Passenger Terminal Building: Importance In a civil airport, the passenger terminal building is the centre of all activities. It services both inbound and outward boun