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Grade: 8,    Subject: Math,    Topic: Probability and Statistics Box-and-Whisker plot
Question 1:
Calculate Median for the following data.

4, 22, 9, 10, 11, 13, 15, 17, 8, 7, 19, 7, 11, 25, 3, 27 and 15.

7.511

1812
 
Question 2:
Calculate First Quartile for the following data.

4, 22, 9, 10, 11, 13, 15, 17, 8, 7, 19, 7, 11, 25, 3, 27 and 15.

7.511

188
 
Question 3:
Calculate Upper Quartile for the following data.

4, 22, 9, 10, 11, 13, 15, 17, 8, 7, 19, 7, 11, 25, 3, 27 and 15.

7.511

1820
 
Question 4:
Calculate Range for the following data.

4, 22, 9, 10, 11, 13, 15, 17, 8, 7, 19, 7, 11, 25, 3, 27 and 15.

0 − 277.5 − 18

273 − 27
 
Question 5:
The numbers of days taken off by 11 employees in a company are 30, 38, 27, 22, 42, 33, 40, 30, 43, 34 and 40. Find the lower, middle and upper quartile of the data.

27, 34 and 4030, 33 and 40

30, 34 and 4030, 34 and 38
 
Question 6:
Which grade has the largest range?

Grade 7Grade 8

Grade 9Grade 10
 
See the following text/image to answer questions 6 through 10
 
Question 7:
Which grade has the highest median score?

Grade 7Grade 8

Grade 9Grade 10
 
Question 8:
What is the lower quartile score for Grade 8?

4570

7891
 
Question 9:
In which grade one or more student(s) scored 100?

Grade 7 and Grade 8Grade 7 and Grade 9

Grade 8Grade 7
 
Question 10:
What is the approximate difference between upper quartile and lower quartile for grade 8?

1020

7090
 
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