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.
Example: -15, -5, -65, -68, -85
-5, -15, -65, -68, -85
-68, -5, -15, -65, -85
-5, -85, -15, -68, -65
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: 22
4
22
2
Example: ∛8 =
2
Example: 4
=
|-4|
Example:
LCM (least common multiple) of 3 and 6
3
6
9
Example: What is the area of a circle whose radius is 5 cm? Given: Radius(r) = 5 cm Area of a circle: πr2 = π x 52 = π x 25 = 25π sq cm