QQuestionMathematics
QuestionMathematics
How to find frequency in statistics?
Write the formula and explain.
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Answer
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Step 1:I'll explain how to find frequency in statistics with a clear, step-by-step approach:
Step 2:: Understanding Frequency
Frequency is the number of times a specific value or category appears in a dataset. There are two main types of frequency: - Absolute Frequency: The actual count of occurrences - Relative Frequency: The proportion of occurrences relative to the total number of observations
Step 3:: Absolute Frequency Formula
- $$n$$ is the number of times a particular value appears in the dataset
The formula for absolute frequency is straightforward: Where:
Step 4:: Relative Frequency Formula
- $$N$$ is the total number of observations in the dataset
The relative frequency is calculated as: Where:
Step 5:: Practical Example
RF_{85} = \frac{4}{7} \approx 0.571$$ or 57.1%
Let's say we have a dataset of test scores: [85, 90, 85, 92, 85, 88, 85] Absolute Frequency of 85: Relative Frequency of 85:
Final Answer
To find frequency: 1. Count occurrences for absolute frequency 2. Divide occurrences by total observations for relative frequency 3. Use formulas f = n and RF = \frac{f}{N}
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