wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The probability that a screw manufactured by a company is defective is 0.1. The company sells screws in packets containing 5 screws and gives a guarantee of replacement if one or more screws in the packet are found to be defective. The probability that a packet would have to be replaced is .


  1. 0.41

Open in App
Solution

The correct option is A 0.41
probability that a screw manufactured is defective;

P(d) = 0.1

probability that a screw manufactured is correct;

P(c) = 1 - 0.1 = 0.9

Now the company guarantee replacement if P(d1), meaning

P(d1)=1P(d<1)
= 1 - P(d = 0)

P(d1)=1 5C0(0.1)0(0.9)5

=1(0.9)5=0.41

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Binomial Distribution
ENGINEERING MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon