Consider the o doiane following Year 1790 1800 Population Cin millions ) 3.१2१। 5.308 7.240 1810 1820 1830 12.866 17,069 23, 192 31.433 38.558 50. 156 62.948 7S. ११८ १. ११2 105, 711 122.775 131.669 ISO, 697 (९५6 1850 1870 1880 (890 1900 1910 1920 1930 1940 1950 a)) (ensus data for the United States betueen 1790 and 1950 a lagistic populati t is years Since given in the toble above. Construct the data from 1790- using are 1860 and I l920. CAssume that t is years Since Round all (790 and P is popu lation in millions. coRthicents to 'fdur decimal places.
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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