The box plots show the number of hours of television a group of middle school students and a group of elementary school students watch each week. Which correctly compares the medians and the measures of variability of the data in the box plots? Select three choices. The difference in the medians is about 1.5 hours. The range for both middle school students and elementary school students is 6 hours. The interquartile range for middle school students is 5, and the interquartile range for elementary school students is 3. Both sets of data have the same maximum and minimum values. The medians for the two sets of data are the same.
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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The box plots show the number of hours of television a group of middle school students and a group of elementary school students watch each week.
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