Given an Urn Containing 2 Pink Balls, 3 Green Balls

question 34

Multiple Choice

Given an urn containing 2 pink balls, 3 green balls, and 5 yellow balls. What is the probability of drawing either a green ball or a yellow ball on a single draw?

• A) 2/25
• B) 3/20
• C) 3/4
• D) 9/10
• E) 4/5

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Definitions:

Helium

Helium is a chemical element with symbol He and atomic number 2, known as the second lightest and second most abundant element in the observable universe, primarily used in cryogenics and as an inert gas shield in arc welding.

Lewis Structures

Diagrams that represent the valence electrons of atoms within a molecule, showing how they are bonded together.

Double Bond

A chemical bond in which two pairs of electrons are shared between two atoms.

Lewis Structure

A representation of molecules where symbols for elements are used to represent nuclei and inner-shell electrons, and dots or dashes between symbols represent electron pairs forming covalent bonds.