| Nonagon |
A figure with nine sides and nine angles. |
| Normal distribution |
A symmetric and “bell-shaped” distribution. It is the
limiting shape of the binomial distribution as n grows increasingly large. |
| normal
distribution |
a normal distribution of data is one in which most of the
survey respondents give the middle value as their answer, and fewer
respondents give the highest and lowest values |
| Number
Sense |
Having a deep understanding of the relationships between
numbers. |
| numerator |
the numeral above the line
showing the number of equal parts considered |
| Numerator |
In a fraction, it shows how many of the equal parts
of a thing are taken. (Example:
In 2/5, 2 is the numerator. |
| Obtuse
triangle |
A triangle with one angle
greater than 90 degrees. |
| Octagon |
A figure with eight sides and eight angles. |
| Odd
number |
A whole number ending with 1, 3, 5, 7, or 9 in the ones
place. |
| Outlier |
A value in a data set that is uncharacteristic of most of
the data. |
| PARALLEL |
always the same distance
apart; do not intersect |
| Parallelogram |
A quadrilateral with opposite sides equal in length and
parallel. |
| Pentagon |
A figure with five sides and five angles. |
| percent |
a way of comparing a number
to one hundred (per 100) |
| Percent |
A
special ratio that compares a number to 100 using the symbol %. |
| Period |
The length of the x-interval required for the graph of one
complete cycle before the graph begins to repeat itself. |
| Periodic function |
A function whose graph repeats over and over again. |
| Permutation |
An arrangement or selection of objects from a set when order
is important. |
| PERPENDICULAR |
intersects to form right
angles |
| pictograph |
uses pictures or symbols to
show data |
| PLACE
VALUE |
system to represent any
number with one or more of the ten digits the value of a digit depends on
its place within the number |
| POLYGON |
a closed figure formed by
three or more segments |
| Polygon |
A closed plane figure formed from line segments that meet
only at their endpoints. |
| Polynomial |
An expression made up of the sum of terms whose variables
have only positive wholenumber powers. |
| Portion |
A part of the whole |
| Predict |
To tell what you think will happen. |
| Prime |
A number that has only one and itself as factors.
Prime numbers for example would be
2, 3, 5, 7, 11, etc |
| Probability |
The chance of an event occurring. The number of favorable
outcomes divided by the total number of all possible outcomes. If you toss
a coin 100 times and a head lands up 56 times, the experimental
probability of heads landing up is 56/100 or 14/25. The theoretical
probability of heads landing up is 1 out of 2 or 1/2. |
| Proportion |
A statement of the form a/b = c/d. Each of a, b, c, d, is
called a term of the proportion. In a proportion, a and b (the first and
fourth terms) are called the extremes and b and c (the second and third
terms) are called the means. The product of the means equals the product
of the extremes. |
| PYRAMID |
a three dimensional figure
(polyhedron) with one base and triangular faces. |
| Pythagorean theorem |
A relationship between the lengths of the sides in a right
triangle. |
