No Religious Affiliation Trends. The following table gives the percentage of first-year college students who answered “None” when asked about their religious affiliation in selected years. Display the data as a time-series graph and write a short paragraph explaining any noticeable trends or patterns. Year Percentage claiming no religious affiliation 1985 9.4% 1990 12.3% 1995 14.0% 2000 14.9% 2005 17.4% 2010 23.0% 2015 29.5%
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.
No Religious Affiliation Trends. The following table gives the percentage of first-year college students who answered “None” when asked about their religious affiliation in selected years. Display the data as a time-series graph and write a short paragraph explaining any noticeable trends or patterns.
| Year | Percentage claiming no religious affiliation |
|---|---|
| 1985 | 9.4% |
| 1990 | 12.3% |
| 1995 | 14.0% |
| 2000 | 14.9% |
| 2005 | 17.4% |
| 2010 | 23.0% |
| 2015 | 29.5% |
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