Math Problem Statement

Identify the 5-number summary (min, Q1, median, Q3, max) for the data set: 1, 6, 9, 15, 23, 24, 44, 66, 67, 71, 72

Solution

The question asks for the five-number summary (minimum, Q1, median, Q3, and maximum) for the given dataset:

Data Set: 1, 6, 9, 15, 23, 24, 44, 66, 67, 71, 72

Steps to calculate the five-number summary:

  1. Minimum: The smallest number in the dataset.

    • Min = 1
  2. Maximum: The largest number in the dataset.

    • Max = 72
  3. Median: The middle number when the dataset is sorted. Since there are 11 numbers, the median is the 6th number.

    • Median = 24
  4. First Quartile (Q1): This is the median of the lower half of the dataset (the first 5 numbers: 1, 6, 9, 15, 23). The median of this subset is the 3rd number.

    • Q1 = 9
  5. Third Quartile (Q3): This is the median of the upper half of the dataset (the last 5 numbers: 44, 66, 67, 71, 72). The median of this subset is the 3rd number.

    • Q3 = 67

Final five-number summary:

  • Min = 1
  • Q1 = 9
  • Median = 24
  • Q3 = 67
  • Max = 72

Would you like more details on any of the steps or have any other questions?


Here are 5 related questions to expand your understanding:

  1. How is the interquartile range (IQR) calculated from the five-number summary?
  2. How would the five-number summary change if an additional data point was added?
  3. What is the significance of quartiles in data distribution?
  4. How does the five-number summary relate to box plots in statistics?
  5. Can you calculate the range using the five-number summary?

Tip: The interquartile range (IQR) is a good measure of data spread, calculated as IQR=Q3Q1\text{IQR} = Q3 - Q1.

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Math Problem Analysis

Mathematical Concepts

Statistics
Five-number summary
Quartiles

Formulas

Median: middle number in sorted data
Q1: median of lower half
Q3: median of upper half

Theorems

Basic summary statistics for data sets

Suitable Grade Level

Grades 8-10