Below are the ages of 40 males. Complete the frequency distribution table below using the COUNTIFS function: Frequency Class Relative Freq 21 51 60 18 10 - 19 33 35 48 50 20 - 29 32 18 31 20 30 - 39 37 60 29 56 40 - 49 19 58 46 18 50 - 59 61 18 19 36 60 - 69 24 40 58 48 Totals 49 21 44 34 62 21 52 22 53 19 43 61
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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