Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
|
analyze
|
to use observations to describe and compare data
|
|
|
average
|
the sum of two or more quantitites divided by the number of qualtities; the mean
|
|
|
cluster
|
data that are grouped closely together
|
|
|
data
|
information, often numerical, which is gathered for statistical purposes.
|
|
|
frequency table
|
a table that shows the number of pieces of data that fall within the given intervals
|
|
|
gap
|
an empty space or interval
|
|
|
interval
|
the difference between successive values on a scale
|
|
|
line plot
|
a diagram that shows the frequency of data on a number line
|
|
|
mean
|
the sum of the numbers ina set of data divided by the number of pieces of data
|
|
|
measures of central tendency
|
numbers that are used to describe the center of a set of data. These measures include the mean, median, mode
|
|
|
median
|
the middle number in a set of data when the datea are arranged in numerical order. If the data has an even number, the median is the mean of the 2 middle numbers
|
|
|
mode
|
the number (s) or item (s) that appear most often in a set of data
|
|
|
outlier
|
a value that is much higher or much lower than the other values in a set of data.
|
|
|
range
|
the difference between the greatest number and the least number in a set of data
|
|
|
scale
|
the set of all possible values of a given measurement including the least and greatest numbers in a set, separated by the intervals used.
|
|
|
statistics
|
collecting, organizing, and interpreting data
|
|
|
how do you know when to use the mean, median or mode?
|
use mode if data is not numbers
don't use mean if you have an outlier use median if data doesn't have any large gaps |
|
|
bar graph
|
used to show the number of items in a specific category
|
|
|
line graph
|
shows changes over a period of TIME!!!!!
|
|
|
line plot
|
shows how many times each number occurs in a data set
|
|
|
frequency table
|
shows the number of times each data value appears
|
|
|
pictograph
|
uses pictures or symbols to compare data
|
