The median of 7,8,9,10,11,12 is:
- A8
- B9
- C10
- D9.5
Solution & Step-by-step Explanation
To find the median, the given numbers must first be arranged in ascending order:
7,8,9,10,11,12
The number of terms (n) is 6 (which is even). When n is even, the median is calculated as the average of the two middle terms:
Median=
2
(
2
n
)
th
term+(
2
n
+1)
th
term
Median=
2
3
rd
term+4
th
term
=
2
9+10
=
2
19
=9.5
7,8,9,10,11,12
The number of terms (n) is 6 (which is even). When n is even, the median is calculated as the average of the two middle terms:
Median=
2
(
2
n
)
th
term+(
2
n
+1)
th
term
Median=
2
3
rd
term+4
th
term
=
2
9+10
=
2
19
=9.5