The 5-number summary in box plot graph is 120 , 128 , 133.5 , 140 , 150 .
What is box-plot graph?
A boxplot is a graph that gives you a good indication of how the values in the data are spread out. Although boxplots may seem primitive in comparison to a histogram or density plot, they have the advantage of taking up less space, which is useful when comparing distributions between many groups or datasets.
According to the question
Fourteen different second-year medical students at a hospital measured the blood pressure of the same person.
Readings are (mm Hg)
124 139 136 137 120 125 144 130 130 131 128 140 142 150
To construct a boxplot
Arrange them in ascending order
120,124,125,128,130,130,131,136,137,139,140,142,144,150
Now,
1st point = Minimum value = 120
2nd point = first quartile (Q1) = 128
3rd point = Median = (131+136)/2 = 133.5
4th point = third quartile (Q3) = 140
5th point = Maximum = 150
In the boxplot graph all the points are shown
Hence, 5-number summary in box plot graph is 120 , 128 , 133.5 , 140 , 150 .
To know more about box plot graph here:
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