SOLUTION: The probability that a randomly chosen weld will pass inspection is 0.90.
a)If an inspector checks 15 welds, what is the probability that exactly 14 will pass.
b)What is the prob
Algebra.Com
Question 452498: The probability that a randomly chosen weld will pass inspection is 0.90.
a)If an inspector checks 15 welds, what is the probability that exactly 14 will pass.
b)What is the probability that at least 14 will pass.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The probability that a randomly chosen weld will pass inspection is 0.90.
---
Binomial Problems with n = 15 and P(pass) = 0.9 and P(not pass) = 0.1
------------
a)If an inspector checks 15 welds, what is the probability that exactly 14 will pass.
---
P(x = 14) = 15C14(0.9)^14*(0.1) = 0.3432
-----------
b)What is the probability that at least 14 will pass.
---
P(14<= x <=15) = 1-P(0<= x <=13) = 0.5490
============
Cheers,
Stan H.
================
RELATED QUESTIONS
Smith is a weld inspector at a shipyard. He knows from keeping track of good and... (answered by ikleyn)
Smith is a weld inspector at a shipyard. He knows from keeping track of good and... (answered by Boreal,ikleyn)
a weld inspector in a shipyard knows that 5% of all welds done will be substandard. if... (answered by rfer)
a) A company makes tablets of which 85% of tablets would pass a quality control test by... (answered by vashistrs76)
A company makes tablets of which 85% of tablets would pass a quaility control test by an... (answered by stanbon)
An assembly line has two inspectors. The probability that the first inspector will miss... (answered by ikleyn)
Batteries for torch lights are packed in boxes of 10 and a lot contains 10 boxes. A... (answered by stanbon)
1. –/2 points Notes
Problem 7-22 A food-packaging apparatus underfills 20% of the... (answered by solver91311)
A quality control inspector has drawn a sample of
11 light bulbs from a recent... (answered by Boreal)