Questions
The median of a set of nine distinct observations is 20.5. If each of the last four observations of the set is increased by 2, then the median of the new set
a
Is Increased by 2
b
Is decreased by 2
c
Is two times the original median
d
Remains the same as that of the original set
detailed solution
Correct option is D
Since n=9, median term =9+12th=5 th term. Now, the last four observations are increased by 2. Since the median is the 5th observation, which remains unchanged, there will be no change in median.Talk to our academic expert!
Similar Questions
The following data give the distribution of heights of students:
| Height (in cm) | 160 | 150 | 152 | 161 | 156 | 154 | 155 |
| Number of students | 12 | 8 | 4 | 4 | 3 | 3 | 7 |
The median of the distribution is
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