Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 51.951.9 degrees. Low Temperature (circle◦F) 40minus−44 45minus−49 50minus−54 55minus−59 60minus−64 Frequency 22 66 99 77 11 The mean of the frequency distribution is nothing degrees.
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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Low Temperature
(circle◦F)
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40minus−44
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45minus−49
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50minus−54
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55minus−59
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60minus−64
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|
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Frequency
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22
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66
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99
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77
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11
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