Math Problem Statement

Prepare a frequency distribution of class interval of 10. The following data set is 8,2, 6, 10, 11, 14, 21, 18, 10, 17, 16, 14

Solution

To prepare a frequency distribution with a class interval of 10 for the given dataset, let's follow these steps:

Step 1: Organize the Data

Given dataTo prepare a frequency distribution with a class interval of 10 for the given dataset, let's follow these steps:

Step 1: Organize the Data

Given 8, 2, 6, 10, 11, 14, 21, 18, 10, 17, 16, 14

Step 2: Determine the Range and Class Intervals

  • Smallest value (Minimum): 2
  • Largest value (Maximum): 21
  • Range: 212=1921 - 2 = 19

With a class interval of 10, we can start the first class from 0, which covers up to 9. Let's define the class intervals:

  1. 0 - 9
  2. 10 - 19
  3. 20 - 29

Step 3: Tally and Count the Frequencies

Class IntervalTallyFrequency
0 - 9
10 - 19
20 - 29

Step 4: Frequency Distribution Table

Class IntervalFrequency
0 - 94
10 - 197
20 - 291

Explanation:

  • 0 - 9: Contains the values 2, 6, 8 (4 entries in total).
  • 10 - 19: Contains the values 10, 10, 11, 14, 14, 16, 17 (7 entries).
  • 20 - 29: Contains the value 21 (1 entry).

Would you like more details or have any questions?

Related Questions:

  1. How do you determine the range and number of classes in a frequency distribution?
  2. What is the significance of choosing appropriate class intervals?
  3. Can you explain how to calculate the cumulative frequency?
  4. What are the differences between frequency distribution and cumulative frequency distribution?
  5. How can we represent this data graphically using a histogram?

Tip:

When creating a frequency distribution, always ensure that class intervals are mutually exclusive and exhaustive, covering the entire data set without overlapping.

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Math Problem Analysis

Mathematical Concepts

Statistics
Frequency Distribution
Class Intervals

Formulas

Range = Maximum Value - Minimum Value
Frequency Distribution Table Formula

Theorems

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Suitable Grade Level

Grades 6-8