Math Problem Statement

Determine the mean, median, and mode of following data set:

96.9

96.9

71.4

82.6

96.9

76

77

67

65.4

59.9

Mean =

Median =

Mode =

Round your answers to the nearest hundredth as needed.

Solution

Let's calculate the mean, median, and mode for the given data set:

Data Set: 96.9, 96.9, 71.4, 82.6, 96.9, 76, 77, 67, 65.4, 59.9

  1. Mean: Mean=Sum of all valuesNumber of values=96.9+96.9+71.4+82.6+96.9+76+77+67+65.4+59.910=812.910=81.29\text{Mean} = \frac{\text{Sum of all values}}{\text{Number of values}} = \frac{96.9 + 96.9 + 71.4 + 82.6 + 96.9 + 76 + 77 + 67 + 65.4 + 59.9}{10} = \frac{ 812.9}{10} = 81.29

  2. Median: First, arrange the data in ascending order: 59.9, 65.4, 67, 71.4, 76, 77, 82.6, 96.9, 96.9, 96.9. Since there are 10 values (even), the median is the average of the 5th and 6th values: Median=76+772=1532=76.5\text{Median} = \frac{76 + 77}{2} = \frac{153}{2} = 76.5

  3. Mode: The mode is the value that appears most frequently, which is 96.9 (it appears 3 times).

Summary:

  • Mean: 81.29
  • Median: 76.50
  • Mode: 96.90

Would you like more details or have any questions? Here are some follow-up questions you might consider:

  1. How do you calculate the range of this data set?
  2. What is the significance of the mode in this context?
  3. How would the mean change if we added a new data point?
  4. What other measures of central tendency might be relevant?
  5. Can you explain the differences between mean, median, and mode?

Tip: Always check for outliers, as they can significantly affect the mean!

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Math Problem Analysis

Mathematical Concepts

Statistics
Measures of Central Tendency

Formulas

Mean = (Sum of values) / (Number of values)
Median = Middle value(s) of ordered data set
Mode = Most frequent value

Theorems

No specific theorems, basic statistical formulas

Suitable Grade Level

Grades 6-8