The horizontal line extends from the minimum to the maximum value, excluding outside and far out values which are displayed as. The lower quartile falls below 25 percent of scores and upper quartile falls below 75 percent of the scores. Quartiles Interquartile Range Construct Box and Whisker Plot. This is the Box-and-Whisker plot for the variable Weight: In the Box-and-whisker plot, the central box represents the values from the lower to upper quartile (25 to 75 percentile). Whiskers are used to indicate variability outside the upper and the lower quartile.Ī box plot has a five number summary of a set of data that includes the minimum score, first quartile (lower), median, third quartile (upper) and maximum score. A box and whisker plot is a visual tool that is used to graphically display the median, lower and upper quartiles, and lower and upper extremes of a set of data. The line through the center is the median. In the box and whisker plot, the lower box edge corresponds to the first quartile, and the upper box edge corresponds to the third quartile. Maximum: The largest value in a data set. Box plot extends its lines from the boxes generally called as whiskers. Third quartile: The middle value between the Median and the Maximum75 th percentile. Box plots or box and whisker charts can be constructed for different sample sets to compare distributions. These plots contain the range, interquartile range, median, lower value, upper value, lower quartile and upper quartile. We know that a box plot is a graph that offers us an idea about how the values in the data should be spread. Box plots or box and whisker charts are a good way to display a range of information about your data sample.
The lowest score, excluding outliers (shown at the end of the left whisker). Hint: To solve this question first we need to know about the box and whisker plot. Box plots show the five-number summary of a set of data: including the minimum score, first (lower) quartile, median, third (upper) quartile, and maximum score.
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