waterwisepoolcare
Calculators
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
waterwisepoolcare
waterwisepoolcare
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
MATH SOLVE
Home
General
A bag contains 10 marbles numbered from 1 to 10. Two marbles are selected from the bag at the same t...
5 months ago
Q:
A bag contains 10 marbles numbered from 1 to 10. Two marbles are selected from the bag at the same time. Let event E = the two numbers are even. How many outcomes are in the complement of E? A.10B.20C.60D.80
Accepted Solution
A:
D) 80
because
total outcomes = 10 x 9 = 90
the numbers are even,
(2, 4), (2, 6), (2, 8), (2, 10), (4, 6), (4, 8), (4, 10), (6, 8), (6, 10), (8, 10)
The complement of E is when the two numbers are NOT even.
thus,
90 - 10 = 80