I. Find the mean, median and mode for each data set.
1. 67,89, 93,77, 84
2. 32,43,31, 52, 28, 39
3. 13, 11, 10, 12, 14, 9, 11, 8, 11
4. 10, 5, 7, 10, 9, 1, 10, 9, 1
Answer (1)
Answer:1. 67, 89, 93, 77, 84 - Mean: (67 + 89 + 93 + 77 + 84) / 5 = 82- Median: Arrange the numbers in ascending order: 67, 77, 84, 89, 93. The median is the middle number, which is 84.- Mode: There is no mode, as no number repeats. 2. 32, 43, 31, 52, 28, 39 - Mean: (32 + 43 + 31 + 52 + 28 + 39) / 6 = 37.5- Median: Arrange the numbers in ascending order: 28, 31, 32, 39, 43, 52. The median is the average of the two middle numbers: (32 + 39) / 2 = 35.5- Mode: There is no mode, as no number repeats. 3. 13, 11, 10, 12, 14, 9, 11, 8, 11 - Mean: (13 + 11 + 10 + 12 + 14 + 9 + 11 + 8 + 11) / 9 = 11- Median: Arrange the numbers in ascending order: 8, 9, 10, 11, 11, 11, 12, 13, 14. The median is the middle number, which is 11.- Mode: The mode is 11, as it appears three times. 4. 10, 5, 7, 10, 9, 1, 10, 9, 1 - Mean: (10 + 5 + 7 + 10 + 9 + 1 + 10 + 9 + 1) / 9 = 7- Median: Arrange the numbers in ascending order: 1, 1, 5, 7, 9, 9, 10, 10, 10. The median is the middle number, which is 9.- Mode: The mode is 10, as it appears 3 times
