1: What is the median of the data set: 25,8,10,35,5,45,40,30,20
A:10 ~
B:22.5
C:25
D:27.5
2: What is the upper quartile of the given data set: 25,8,10,35,5,45,40,30,20
A:35
B:37.5 ~
C:37
D:40
3: What is the lower quartile of the given data set: 25,8,10,35,5,45,40,30,20
A:5
B:8 ~
C:9
D:10
4: Which statement describes box and whisker plots?
A: THEY ARE DIVIDED INTO SECTIONS USING QUARTILES AND EXTREMES
B: THEY ARE CREATED BY FIRST WRITING A DATA SET IN ORDER FROM LEAST TO GREATEST
C: THEY SHOW HOW A DATA SET IS DISTRIBUTED
D: ALL OF THE ABOVE
5: When constructing a box and whisker plot using the data set below, at which values would you draw the left and right sides of your box?
6,7,1,3,9,3,2,5,8,4,8
A: LEFT AT 3 ; RIGHT AT 8
B: LEFT AT 2 ; RIGHT AT 8
C: LEFT AT 2 ; RIGHT AT 7
D: LEFT AT 3 ; RIGHT AT 7
PLZ help me!
1. C
2. B
3. C
4. D
5. A
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Median - 5, 8, 10, 20, 25, 30, 35, 40, 45. 25 is the middle number, therefore the median.
Upper Quartile - 5, 8, 10, 20, | 25 | 30, 35, 40, 45. Anything past 25 is in the upper quartile range. For Question 3, just take anything less that 25.
Box-and-Whisker Plots - Unfortunately, I cannot cheat for you, so look at the definition for Box-and-Whisker Plots.