alleryA box has 100 bulbs of which 4 are defective. One bulb is chosen at random. What is the probability that it is not defective?
A96/100
B24/25
C4/100
D1/25
Answer & Solution
Correct answer: B. 24/25
Good bulbs: 96. P(not defective) = 96/100 = 24/25.
Keep practising Statistics and Probability
Browse all Statistics and Probability questions for Andhra Pradesh SSC (Class 10), or explore more Mathematics topics.
Related questions
SAT · Mathematics · Slope from Two Points — Gap FillCLASS10 · Mathematics · Statistics — True or FalseCLASS10 · Mathematics · Probability — BasicsCLASS10 · Mathematics · Mean, Median, ModeCLASS10 · Mathematics · Distance Formula — Gap FillFor an even number of sorted values, the median is:Mean of 5 numbers is 12. Their sum equals:Midpoint of A(2, 4) and B(6, 10) is: