Q. 235.0( 2 Votes )

# Is known that a box of 800 electric bulbs contains 36 defective bulbs. One bulb is taken at random out of the box. What is the probability that the bulb chosen is nondefective?

Answer :

Total number of electric bulbs = 800

Number of Non-defective bulbs = 800-36 = 764

Probability P() =

Probability a Non- defective bulbs P(bulbs) = = =

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

PREVIOUSThe marks obtained by 90 students of a school in Mathematics out of 100 are given as under:From these students, a students is chosen at random.What is the probability that the chosen student(i) gets 20% or less marks?(ii) gets 60% or more marks?NEXTThe table given below shows the ages of 75 teachers in a school.Note Here 18-29 means from 18 to 29 including both. A teacher from the school is chosen at ramdom. What is the probability that the teacher chosen is(i) 40 years or more then 40 years old?(ii) 49 years or less then 49 years old?(iii) 60 years or more then 60 years old?

Related Videos

Champ Quiz | Basics of Probability36 mins

RD Sharma | IMP Qs Discussion on Probability43 mins

Quiz | Calculating Probability39 mins

NCERT | Critical Thinking Problems in Probability39 mins

RD Sharma | Extras on Probability45 mins

Concept of Probability36 mins

Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Expertsview all courses

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation