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Example: 22
21
2
20
Example: 4
5
Example: Find the median of the following: 1, 2, 1, 5, 5
Step 1: Sort the list → 1, 1, 2, 5, 5
Step 2: Count of numbers listed → 5 (odd)
Step 3: So the middle number is (count+1)/2 → (5+1)/2 → 3rd number. Therefore, the median is 2.
Step 1: Sort the list → 1, 1, 2, 5, 5
Step 2: Count of numbers listed → 5 (odd)
Step 3: So the middle number is (count+1)/2 → (5+1)/2 → 3rd number. Therefore, the median is 2.
Example:
LCM (least common multiple) of 3 and 6
3
6
9
Example: -22
22
-22
-20
Example:
red ball to blue balls
3:2
2:1
3:5
2:5
Example:
2
6
+
1
2
1
6
2
3
5
6
Example: Rails in a railway track
perpendicular
parallel
Example: 4
3
Example: -4
4
Example: -15, -5, -65, -68, -85
-85, -68, -65, -15, -5
-68, -65, -15, -5, -85
-15, -85, -5, -68, -65
Example: 4
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