Make a box and whisker plot to represent each set of data.
Snack prices: $0.99 $0.85 $1.05 $3.25 $1.49 $1.35 $2.79 $1.99
Find minimum , first quartile , median , third quartile , and maximum of the given data set and make a box-and-whisker plot.
Answer to Problem 7P
Minimum = 0.85
First quartile = 1.02
Median = 1.42
Third quartile = 2.39
Maximum = 3.25
Explanation of Solution
Given:
0.99 , 0.85 , 1.05 , 3.25 , 1.49 , 1.35 , 2.79 , 1.99
Calculation:
Arrange the data in ascending order:
0.85 , 0.99 , 1.05 , 1.35 , 1.49 , 1.99 , 2.79 , 3.25
The minimum is 0.85.
The first quartile is the median of the lower half of the data set.
Since the total entries are 8, which is even , So, the lower half is the first
So , the first quartile is
Median = The mean of
The third quartile is the median of the upper half of the data set.
Since the total entries are 8, which is even , So, the lower half is the last
So , the third quartile is
The maximum is 3.25
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