Math Problem Statement
Solution
To find the 94th percentile () from the given data, we need to follow these steps:
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Organize the data in ascending order (which it already is).
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Find the total number of data points (n): In the provided table, there are 6 rows and 6 columns, making a total of data points.
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Determine the position of the 94th percentile using the formula: where and .
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Calculate the position:
This means that the 94th percentile lies between the 34th and 35th data points.
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Identify the values at these positions:
- The 34th value is 840.
- The 35th value is 860.
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Interpolate to find : Since is at position 34.78, we can interpolate between 840 and 860:
Thus, the 94th percentile is approximately 855.6.
Would you like further clarification or details? Here are five related questions to expand your understanding:
- What is the formula for calculating percentiles in a data set?
- How do you interpolate between two data points for non-integer percentiles?
- What is the difference between percentiles and quartiles?
- Can the 50th percentile be considered the median?
- How does increasing the data set size affect the position of percentiles?
Tip: When calculating percentiles, always ensure the data is ordered correctly, as this directly impacts the results.
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Math Problem Analysis
Mathematical Concepts
Percentile
Interpolation
Statistics
Formulas
Percentile position formula: P_k = (k/100) * (n + 1)
Linear interpolation formula: P_k = Value_1 + (Value_2 - Value_1) * (Position - Integer Part of Position)
Theorems
Percentile Calculation
Interpolation
Suitable Grade Level
Grades 10-12