Please can help me solving my problems(Probality)
posted by Fakaapo. Suetusi .
A manufacturer makes mobile phone. The manufacturer employs are inspector to check the quality of its product. The inspector tested a random sample of the phone being defective as 0.049. Ashmita buys three of the phones made by the manufacturer. Find the probability that.
1) At least one of the mobile phone is defective.
2) Exactly one of the mobile phone is defective.
Thank you.

Please can help me solving my problems(Probality) 
Reiny
Prob(nogood) = .049
prob(good) = 1.049 = .951
1) at least one defective> 1  all three are good
= 1  .951^3 = .1399
2) exactly one nogood = C(3,1) (.049)(.951^2) = .1329
Respond to this Question
Similar Questions

Statistics
A production process is checked perifically by a quality control inspector. The inspector selects simple random samples of 30 finished products and computes the sample mean product weights x. If test results over a long period of time … 
statistics
Given the following situation, how would you use Megastat to test whether the population defective rate is greater than 10%? 
statistics
the quality control inspector of a production plant will reject a batch of syringes it two or more defective syringes are found in a random sample of ten syringes taken from the batch. suppose the batch contains 2% defective syringes. … 
statistics
1. The qualitycontrol inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of eight syringes taken from the batch. Suppse the batch contains 2% defective syringes. … 
statistics
A cellular phone manufacturer randomly selects 5 phones from every batch of 50 produced. If at least one of the phones is found to be defective than each phone in the batch is tested individually. Find the probability that the entire … 
statistics
A cellular phone manufacturer randomly selects 5 phones from every batch of 50 produced. If at least one of the phones is found to be defective than each phone in the batch is tested individually. Find the probability that the entire … 
math
In a manufacturing process, each item leaving an assembly line will be examined by two inspectors: A and B individually. Based on past experiences, Inspector A detects 60% of the defective items. If the defective items are not detected … 
Social Studies
A popular cell phone manufacturer begins selling a new phone with many unique features. Lots of people want to buy the new phone. The old phone cost $149. What is the most likely price of the new phone? 
finite math
a cellular phone manufacturer randomly selects 5 phones from every batch of 50 produced. if at least one of the phones is found to be defective, then each phone in the batch is tested individually. find the probability that the entire … 
statistics
Unknown to a qualitycontrol inspector, 20% of a very large shipment of electric switches are defective. The inspector has been told to reject the shipment if, in a sample of 15 switches, 2 or more are defective. The probability that …