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:
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:
- 0 - 9
- 10 - 19
- 20 - 29
Step 3: Tally and Count the Frequencies
Class Interval | Tally | Frequency |
---|---|---|
0 - 9 | ||
10 - 19 | ||
20 - 29 |
Step 4: Frequency Distribution Table
Class Interval | Frequency |
---|---|
0 - 9 | 4 |
10 - 19 | 7 |
20 - 29 | 1 |
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:
- How do you determine the range and number of classes in a frequency distribution?
- What is the significance of choosing appropriate class intervals?
- Can you explain how to calculate the cumulative frequency?
- What are the differences between frequency distribution and cumulative frequency distribution?
- 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