Final Math Exam Flashcards
Appropriate Tool
Rulers, Tape measures, Yard sticks
Level of Precision
Precision indicates how close the measurements are to each other. the level of repeatability of measurements.
Two Dimensional
a flat figure or a shape that has two dimensions —length and width like on paper
Three Dimensional
The objects around you, the ones you can pick up, touch, and move around, are three-dimensional. These shapes have a third dimension: depth. Cubes, prisms, pyramids, spheres, cones, and cylinders
Measurement
measurement is a process of determining how large or small a physical quantity is as compared to a basic reference quantity of the same kind.
Scale factor
the ratio between the scale of a given original object and a new object
Precision
how consistent any given values are with each other. It shows the closeness of the given values, or measurements are with each other
Scatterplot
A scatter plot is a set of points plotted on a horizontal and vertical axes.
Linear Regression
commonly used for predictive analysis and modeling. predict the value of a variable based on the value of another variable
Mean
Average of a data set, add all numbers and divide by how many are there are
Median
Value in the middle of a data set order from least to greatest, choose numbers the 1 or 2 numbers in the middle
+ & divide by 2
Mode
Value that appears most often in data. One, more than one or none
Range
the difference between the largest and smallest data points in a set of numerical data
Interquartile range
Range of values that resides in the middle of scores
Order least to greatest, find median, calculate median of lower & upper half of data, The IQR is the difference between upper & lower medians
Standard deviation
Measure how dispersed the data is in a relation to a mean
Step 1. Find Mean
Step 2. for each data find the square of its distance to the mean
Step 3. add the values from step 2
Step 4. divide by the number of data points
Step 5. Take the square root
