Share
Notifications

View all notifications
Advertisement

A Box Contains 150 Bulbs Out of Which 15 Are Defective. It is Not Possible to Just Look at a Bulb and Tell Whether Or Not It is Defective. One Bulb is Taken Out at Random from this Box. Calculate the Probability that the Bulb Taken Out Is: a Defective One - Mathematics

Login
Create free account


      Forgot password?

Question

A box contains 150 bulbs out of which 15 are defective. It is not possible to just look at a bulb and tell whether or not it is defective. One bulb is taken out at random from this box. Calculate the probability that the bulb taken out is:  

a defective one 

Solution

Total number of possible outcomes =150 

Number of bulbs which are defective=15 

P(taking out a defective bulb)=`15/150=1/10`

  Is there an error in this question or solution?
Advertisement

APPEARS IN

 Selina Solution for Concise Mathematics for Class 10 ICSE (2020 (Latest))
Chapter 25: Probability
Exercise 25(C) | Q: 22.2 | Page no. 395
Advertisement
A Box Contains 150 Bulbs Out of Which 15 Are Defective. It is Not Possible to Just Look at a Bulb and Tell Whether Or Not It is Defective. One Bulb is Taken Out at Random from this Box. Calculate the Probability that the Bulb Taken Out Is: a Defective One Concept: Probability - A Theoretical Approach.
Advertisement
View in app×