The bar graph below displays students' responses to the uestion "What caffeinated drinks do you consume?" Which of the following statements is correct? The highest percentage of students drink coffee. O More than three times as many students drink tea Caffeinated Drinks energy drinks. The number of students who drink tea is about the 0.9 same as the number of students who drink soda. OAll of the above. 0.6 0.3 0.0 Coffee Tea Soda Energy Relative Frequency
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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