Foundation PN-3 FBMS Quiz 11

1. For a frequency distribution, the mode is:

2. Find the median of the data: 3, 7, 9, 12, 15, 18.

3. Find the mean of the data: 5, 8, 12, 15, 20.

4. The mean is the most appropriate measure of central tendency when:

5. A Paasche price index tends to understate inflation compared to Laspeyres index when:

6. In time series analysis, seasonal variation is:

7. The price of commodity X in 2019 was 50, in 2020 it became 55. Using 2019 as base year, the simple price index is:

8. Which of the following is a weighted index number?

9. Box has 8 balls numbered 1–8. Probability of drawing a number divisible by 2 or 3:

10. Probability of drawing an ace from a deck:

11. A die rolled. Probability that the number is greater than 5:

12. Bag contains 2 red, 3 blue, 4 green balls. Probability that a ball drawn is not blue:

13. Probability of rolling an odd number on a die is:

14. A die is rolled twice. Probability that the first number is greater than the second:

15. A card drawn from a deck. Probability that it is black or a king:

16. In a box, 4 defective and 6 good bulbs. Two bulbs drawn without replacement. Probability that at least one is defective:

17. A card is drawn from a deck. Probability that it is neither a face card nor a red card is:

18. A die is rolled. Probability that the number is odd and less than 5 is:

19. A bag contains 5 white and 7 black balls. Two balls are drawn with replacement. Probability that both are black is:

20. Two dice are rolled. Probability that the sum is a prime number is:

21. A die is rolled 3 times. Probability of getting exactly two sixes is:

22. A box contains 8 balls numbered 1 to 8. A ball is drawn at random. Probability that it is prime or even:

23. A bag contains 3 red, 4 blue, and 5 green balls. Three balls are drawn at random without replacement. Probability  that  all  are  different colors:

24. In a factory, 2 machines produce 60% and 40% of total output. Their defect rates are 3% and 5% respectively. If a product is defective, the probability it came from Machine 1 is:

25. A box contains 6 white and 4 black balls. Two balls are drawn without replacement. The probability that both are white is: