Question

10 জনের একটি পরিবারে বাবা, মা এবং সবচেয়ে বড় ছেলে মাসে (যথাক্রমে) ₹4000 ₹3000 ₹4400 আয় করে। পরিবারের একজন সদস্যের মাসিক গড় আয় কত? (i) ₹3000 (ii) ₹3500 (iii) ₹2010 (iv) ₹3800​

Answer 1

Components arriving at a distributor are checked for defects by two different inspectors (each component is checked by both inspectors). The first inspector detects 90% of all defectives that are present, and the second inspector does likewise. At least one inspector does not detect a defect on 20% of all defective components. What is the probability that the following occur? a. A defective component will be detected only by the first inspector? By exactly one of the two inspectors? b. All three defective components in a batch escape detection by both inspectors (assuming inspections of different components are independent of one another)?

Answer 2

Answer:

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