2. A school keeps a record of drinks purchased from their cafeteria. The data in the table show the purchases for the first eight days of school broken down into lemon juice and choco milk purchases. Lemon Juice 25 17 27 21 23 21 16 26 Choco Milk 10 16 9 15 18 19 22 11 A. Draw a box-and-whisker plot for the lemon juice purchases. B. Draw a hox-and-whisker plot for the choco milk purchases. C. What is the median for lemon juice purchases? Choco milk purchases? D. How do the data sets differ?
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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