Attempt following question by selecting a choice to answer.
e
The table shows the percentage of scores obtained by Jerald each year during his four year degree course. Which of the following is the equivalent
box-and-whisker plot of the data? Also find out the median of scores obtained.
| Year | Percentage of scores |
| 1st Year | 70 |
| 2nd Year | 82 |
| 3rd Year | 76 |
| 4th Year | 80 |
BBBB eeeeA.
ePlot 1, 78
B.
ePlot 2, 90
C.
ePlot 3, 60
D.
ePlot 4, 80
ee
A
Step 1: The ascending order of the percentages obtained by Jerald is 70, 76, 80, 82.
Step 2: In the percentages, the least value is 70 and the greatest value is 82.
Step 3: Middle quartile = Median of all the data
Step 4: = 76 + 802 = 1562 = 78[Add and simplify.]
Step 5: Lower quartile = Median of lower half of the data
Step 6: = 70 + 762 = 1462 = 73[Add and simplify.]
Step 7: Upper quartile = Median of upper half of the data
Step 8: = 80 + 822 = 1622 = 81
[Add and simplify.]
Step 9: So, plot (1) is the equivalent box-and-whisker plot of the data.
Step 10: Median of the scores obtained by Jerald = Middle quartile = 78