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Statistical Formulas

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Questions and Answers

Which formula is used to calculate the Average of a dataset?

COUNT(values, values)

MODE(no1, no2...)

MEDIAN(no1, no2...)

AVERAGE(no1, no2...) (correct)

What is the correct formula to find the median value?

MAX(no1, no2...)

AVERAGE(no1, no2...)

PERCENTILE(array, k)

MEDIAN(no1, no2...) (correct)

How does Excel determine the mode when two values repeat the same number of times?

Excel goes top-down and chooses the first to find mode (correct)

Excel chooses the highest value

Excel goes bottom-up

Excel chooses the second value

Which formula is used to find the maximum value in a dataset?

<p>MAX(no1, no2...)</p> Signup and view all the answers

What does a percentile value of 25 translate to in percentage?

<p>0.25%</p> Signup and view all the answers

Study Notes

Statistical Formulas

Sample Size formula: COUNT(values, values)
Average formula: AVERAGE(no1, no2...)
Median formula: MEDIAN(no1, no2...)
Mode formula: MODE(no1, no2...)
- If multiple values have the same frequency, Excel follows a top-down approach and returns the first value it encounters as the mode.
Maximum formula: MAX(no1, no2...)
Minimum formula: MIN(no1, no2...)
25th Percentile formula: PERCENTILE(array, k)
- k represents the data tile (e.g., 0.25 for the 25th percentile)
- When using PERCENTILE, the range is for baking ( unclear what this means, needs clarification)
- The notation [acb] is used for a specific range (needs clarification)
Percentage notation: always represent as a decimal between 0 and 1, e.g., 25% is equivalent to 0.25

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Description

This quiz covers various statistical formulas including sample size, average, median, mode, maximum, minimum, and percentile calculations. It also explains how to use Excel functions for these calculations.