Descriptive statistics – mean, median, mode - One Line Questions

1. What is the mean of the dataset: 5, 5, 5, 5, 5? — 5
2. What is the mean of the dataset: -2, 0, 2, 4, 6? — 2
3. If a dataset has no repeating values, what is its mode? — Undefined
4. What is the mean of the dataset: 0, 0, 0, 0, 0? — 0
5. What is the mean of the dataset: 1, 2, 3, 4, 5? — 3
6. What is the mode of the dataset: 1, 2, 2, 3, 3, 3, 4, 4? — 3
7. What is the median of the dataset: 1, 1, 1, 2, 2, 3? — 1.5
8. What is the mode of the dataset: 10, 12, 10, 15, 12, 10, 18? — 10
9. What is the median of the dataset: 25, 10, 30, 15, 20? — 20
10. What is the median of the dataset: 100, 10, 1000, 100, 10000? — 100
11. What is the mode of the dataset: 11, 13, 15, 13, 11, 13, 17? — 13
12. What is the median of the dataset: 12, 14, 16, 18, 20? — 16
13. Calculate the mean of the dataset: 10, 15, 20, 25, 30. — 20
14. What is the median of the dataset: 7, 2, 9, 4, 5? — 5
15. What is the median of the dataset: 10, 20, 30, 40? — 25
16. Calculate the mean of the dataset: 10, 20, 30, 40, 50, 60. — 35
17. What is the median of the dataset: 15, 25, 35, 45? — 30
18. What is the mode of the following dataset: 2, 3, 3, 4, 5, 5, 5, 6? — 5
19. What is the median of the dataset: 1, 2, 3, 4, 5, 6? — 3.5
20. Consider the dataset: 1, 1, 2, 3, 5, 8, 13. What is the median? — 5
21. What is the mean of the dataset: 1, 3, 5, 7, 9? — 5
22. Calculate the mean of the dataset: 2, 4, 6, 8, 10. — 6
23. Consider the dataset: 5, 10, 15, 20, 25. What is the mean? — 15
24. What is the median of the dataset: 50, 60, 70, 80, 90? — 70
25. What is the mean of the following numbers: 3, 6, 9, 12? — 7.5
26. What is the mode of the dataset: 7, 7, 8, 9, 10, 10? — 7 and 10
27. What is the mode of the dataset: A, B, C, B, D, B, E? — B
28. Which of the following distributions would have the mode as the highest point? — A symmetrical distribution
29. What is the sum of deviations of all values from the mean of a dataset? — Always equal to zero.
30. What is the mode of the dataset: apple, banana, orange, banana, apple, banana? — banana
31. Which of the following is a property of the median? — Exactly half the data points are above it.
32. Which measure of central tendency is determined by the position of values in an ordered list? — Median
33. Which of the following is NOT a measure of central tendency? — Variance
34. Which measure is best used when dealing with ordinal data? — Median
35. Which measure of central tendency is used to identify the most common category in a qualitative dataset? — Mode
36. Which measure of central tendency is least useful for describing a dataset with a wide range of values and a few extreme outliers? — Mean
37. Which measure is most appropriate for nominal data? — Mode
38. Which measure is least affected by the presence of outliers in a dataset? — Median
39. Which of the following is a measure of dispersion, not central tendency? — Standard Deviation
40. In a negatively skewed distribution (tail to the left), how are the mean, median, and mode typically related? — Mean < Median < Mode
41. For a dataset that is perfectly symmetrical, which of the following is true? — Mean = Median = Mode
42. Which measure of central tendency is most affected by extreme values (outliers)? — Mean
43. If a dataset contains the values: 10, 20, 30, 40, 50, and an outlier of 100 is added, which measure of central tendency will change the most? — Mean
44. Which measure of central tendency is the geometric center of the data? — Mean
45. In a positively skewed distribution (tail to the right), how are the mean, median, and mode typically related? — Mode < Median < Mean
46. Which measure of central tendency is appropriate for interval or ratio data? — Mean, Median, and Mode
47. In a dataset of 100 observations, what is the position of the median? — The average of the 50th and 51st observations.
48. What does the median represent in a dataset? — The middle value when the data is ordered.
49. What is the primary purpose of descriptive statistics? — To summarize and describe the main features of a dataset.
50. If a dataset has multiple values that occur with the same highest frequency, what is it called? — Multimodal
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