Podcast
Questions and Answers
What is the mean of the jersey numbers?
What is the mean of the jersey numbers?
- 40.6
- 39.6 (correct)
- 41.6
- 42.6
Which of the following accurately describes the relationship between the mean, median, and mode for this data set?
Which of the following accurately describes the relationship between the mean, median, and mode for this data set?
- The mean is less than the median, and the mode does not exist.
- The mean, median, and mode are all equal.
- The mean is greater than the median, and the mode does not exist. (correct)
- The median is greater than the mean, and the mode does not exist.
Flashcards
Mean
Mean
The average value of a data set, calculated by summing all values and dividing by the number of values.
Median
Median
The middle value of a data set when sorted in order.
Mode
Mode
The value that appears most frequently in a data set.
Midrange
Midrange
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Data Set
Data Set
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Study Notes
Mean, Median, Mode, and Midrange
- Data Set: 78, 81, 54, 2, 25, 13, 65, 23, 77, 15, 30
Mean
- Calculate the sum of all numbers in the data set: 78 + 81 + 54 + 2 + 25 + 13 + 65 + 23 + 77 + 15 + 30 = 491
- Divide the sum by the number of values in the data set (11): 491 / 11 = 44.6
- Mean: 44.6
Median
- Arrange the numbers in ascending order: 2, 13, 15, 23, 25, 30, 54, 65, 77, 78, 81
- The middle number is the median: 30
- Median: 30
Mode
- No number appears more than once
- Mode: There is no mode
Midrange
- Identify the highest and lowest values in the data set: highest = 81, lowest = 2
- Find the sum of the highest and lowest values: 81 + 2 = 83
- Divide the sum by 2: 83 / 2 = 41.5
- Midrange: 41.5
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