SAMPLES AND SURVEYS
Types of Graphs
DEFINING THE TERMS
HOW THEY ARE USED
SAMPLES AND SURVEYS
100
A sample in which each individual or object in the entire population has an equal chance of being selected
What is random
100
A graph used to organize and display data so that the frequencies can be compared
What is a stem-and-leaf plot
100
The value or values that occur most often
What is the mode
100
Shows the distribution of data
What is box-and-whiskers
100
In a county survey, Democratic Party members whose names begin with the letter "D" are chosen
What is systematic
200
The entire group of objects or individuals considered for a survey
What is a population
200
A graph that uses vertical or horizontal bars to display data
What is a Bar Graph
200
The sum of the values, divided by the number of values
What is the mean
200
A good way to display data that can be grouped into categories
What is bar graph
200
A telephone company randomly chooses customers to survey about its service
What is random
300
A sample of a population that has been selected using a pattern
What is systematic
300
A bar graph that shows the frequency of data within equal intervals
What is a histogram
300
Divides a data set into four equal parts
What is quartiles
300
A type of graph that shows the relationships between two sets of data
What is a scatter plot
300
Name the sample: A record store manager asks customers who make a purchase how many hours of music they listen to each day.
What is customers who make a purchase
400
A part of the population
What is a sample
400
A graph with points plotted to show a possible relationship between two sets of data
What is a scatter plot
400
A value much greater or much less than the others in a data set
What is an outlier
400
A type of graph used to show a change over a period of time
What is a line graph
400
A high school randomly chooses three classes from each grade, and then draws three random names from each class to poll about lunch menus.
What is stratified
500
A sample of a population that has been divided into subgroups
What is stratified
500
A graph that displays the highest and lowest quarters of data as whiskers, the middle two quarters of the data as a box, and the median
What is a box-and-whiskers plot
500
The spread of values in a set of data
What is variability
500
A graph that is used to organize or display data
What is stem-and-leaf
500
What is the population: An eighth-grade student council member polls classmates about a new school mascot
What is students in the school
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