The sum of the exterior angles of all polygons equals to 360⁰.Since only the sum of the interior angles of all quadrilaterals equals to 360⁰, the polygon must have 4 sides.
false
360
-6x
NO
Sum of all probabilities is 1.
The sum of the probabilities of all possible outcomes is 1.
(1) That the probabilities lie between 0 and 1. (2) The sum of all probabilities of the distribution sum up to 1.
The sum should equal to 1.
1
1.
The sum of the probabilities of all possible results is one (1). That'sjust another way of saying that one of those results musthappen.
one (1)
A probability must be a real number in the interval [0, 1]. The sum (or integral) of the probabilities over all possible values must be 1.
In a quadrilateral the sum of all four angles equals 360º.
expected value
The sum equals the product.