1. In probability, the sum of the probabilities of all possible outcomes is:
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Mth – BASIC STATISTICS
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2. Which graph is used to display the cumulative frequency distribution?
3. What is the mean of the data: 5, 10, 15, 20, 25?
4. What is the weighted mean of scores 5, 7, 9 with weights 2, 3, 1 respectively?
5. Find the median of: 14, 16, 18, 20, 22, 24.
6. What is the estimated probability based on relative frequency of an event that occurs 35 times in 200 trials?
7. What is the median of the data: 3, 7, 9, 2, 5?
8. The probability of an impossible event is:
9. What is the cumulative frequency of a class?
10. What is the mean of the data set: 4, 8, 6, 5, 3?
11. What is the median of: 3, 5, 7, 9, 11, 13?
12. The width of each bar in a histogram is equal to the:
13. The median of an even number of observations is:
14. If a fair coin is tossed twice, what is the probability of getting two heads?
15. A histogram is used to display:
16. In a histogram, the area of each rectangle is proportional to:
17. The average of scores 60, 70, 80, 90, 100 is:
18. The cumulative frequency of the last class in a distribution is equal to:
19. A frequency polygon is drawn by joining the midpoints of the tops of the bars of a:
20. The sum of frequencies in a grouped frequency distribution is 50. The sum of the relative frequencies is: