Answer all the questions below and press submit to see how many you got right.
Division : Division is the mathematical operation that divides objects equally into groups. More generally $x\div y$ is defined as the number that if multiplied by $y$ equals $x.$
Favorable outcome : In a random experiment the favorable outcomes are the outcomes of the event of which we want to calculate the probability. For example if we want to calculate the probability of throwing an even number with a dice the favorable outcomes are 2, 4 and 6.
Number : A number $x$ is a mathematical symbol representing a quantity.
Possible outcome : Any outcome of a random experiment.
Probability : A probability is a number between 0 and 1 that describes how likely an outcome is. For discrete events that are equally likely the probability can be calculated by dividing the number of favorable outcomes by the number of possible outcomes.
Reduced fraction : A reduced fraction (or simplified fraction or fraction in simplified form or fraction in simplest form) is a fraction $\frac{a}{b}$ such that $a$ and $b$ do not have any common factors bigger than 1. For example the reduced fraction of the fraction $\frac{4}{6}$ is $\frac{2}{3}.$
What is the probability that of two thrown coins at least one lands on heads? (Answer as a simplified fraction a/b.)
Cube : A cube is a three-dimensional shape with 6 faces that are all squares. A cube has 8 corners and 12 edges.
Foot : A foot or ft is a unit for measuring length. 3 feet are one yard. 1 foot is about 30 $cm.$
Length : Length is the attribute of a one-dimensional shape that can be measured with a measuring tape.
Volume : Volume refers to the size of a three-dimensional objects measured by how many unit cubes it would take to fill the shape.
Whole number : A whole number is any of the numbers $0,1,2,\ldots.$
How many cubes with side length 1 ft fit in a box that is 2 ft wide, 4 ft long and 6 ft high?
Corner : A corner of a shape is a point in the shape such that this point does not lie on the line segment between any two other points in the shape. Every triangle has 3 corners and every quadrilateral has 4 corners.
Possible : Possible means having a probability bigger than zero.
Square : A square is a quadrilateral with four right angles and four equal length sides. A square is a special case of a rectangle and a special case of a rhombus.
You have a chess board of which the field in the lower left corner (A1) and the one in the upper right corner (H8) have been sawed off. How many of the remaining 62 square can be covered with domino like tiles that cover 2 by 1 squares each (without overlapping dominos or dominos partially outside the broken chessboard?