math

Descriptive statistics

100

What are the 3 measures of center we talked about in class 

mean median and mode

200

What Is the mean

The mean is the average of a set of numbers. It is found by adding all the numbers together and dividing by how many numbers there are.

300

what is median

The median is the middle number in a set of numbers when they are put in order from least to greatest

400

what is mode?

The mode is the number that appears the most in a set of numbers.

500

when we want to describe a numerical datd se using only a single number what do we use

measure of center

measures of spred

100

What is range

It's a single data set numeric value computed by subtracting the minimum of the maximum 

200

Is it true of false that for a given set of numerical data a measure is speed is a number that measures the amount of variability

True

300

What are the 3 measures of speed that we learned about in class

Standard deviation, range, and interquartile range

400

What is standard deviation sometimes shortens to

STD or STDeV

500

What is the 5 number summary for data

1. Minimum – the smallest value
2. First Quartile (Q1) – the median of the lower half of the data
3. Median – the middle value
4. Third Quartile (Q3) – the median of the upper half of the data
5. Maximum – the largest value

Definitions

100

What is a line segment 

A line segment is a part of a line that has two endpoints and includes all the points between them

200

What is a congruent segment 

Congruent segments are line segments that have the same length, even if they are in different positions or directions.

300

What is a collinear  

Collinear means that points lie on the same straight line.

400

What is a coplanar 

Coplanar means that points or lines lie in the same plane (the same flat surface)

500

What is a ray

A ray is a part of a line that starts at one endpoint and goes on forever in one direction

Polygon

100

What is a polygon 

A polygon is a closed, flat shape made of straight line segments.

200

What is the name of a 4 sided polygon 

Quadrilateral 

300

What is the name of a 6 sided polygon

Hexagon 

400

What is the name of a 11 sided polygon

Undercagon

500

What is the name of a 67 sided polygon

hexacontakaineptagon or a 67-gon

building blocks

100

What is the basic unit of geometry, defined by a flat surface with straight sides that enclose a space.

A polygon 

200

what is a straight figure that starts at one point and extends endlessly in two directions

A line

300

what is  type of angle measures exactly 90 degrees

90 degrees 

400

what are Two lines in the same plane that never meet, no matter how far they extend.

What are parallel lines

500

what is an angle that measures more than 90° but less than 180°

What is an obtuse angle