25 30 61 48 42 a. Determine the population mean age, μ, of the five winners
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
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Ages
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x
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Ages
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x
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Full data set
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|
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|---|---|---|---|---|---|---|---|---|
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25, 30, 61
|
38.67
|
|
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25, 48, 42
|
38.33
|
|
|
|
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25, 30, 48
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34.33
|
|
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30, 61, 48
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46.33
|
|
|
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25, 30, 42
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32.33
|
|
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30, 61, 42
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44.33
|
|
|
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25, 61, 48
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44.67
|
|
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30, 48, 42
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40.00
|
|
|
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25, 61, 42
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42.67
|
|
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61, 48, 42
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50.33
|
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|
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