Types of quantitative graphs
uses bars and frequency
histogram
what is the mean of 4,6,8,10
8
uses bars to separate
bar graph
the entire group of individuals that a researcher wants to study
Population
Before making any calculations you should do what to understand the question
identify variables and question
indiviudal data shows relationship quant
Scatter plot
which measure of center is generally more resistant to outliers
median
the circular graph shows how categories make up a whole
pia chart
a smaller group selected from a population to collet information about it
Sample
When a distribution is appoxitmatly symmetrical with no outliers this measure for center is ok
Mean
5 number summary
box plot
this measure identifies the value that appears most frequently
what is the mode
uses bars arranged from greatest to least occurrence
frequency chart
a numerical summary describing a population such as the pop mean
summary
When a distribution is strongly skewed or contains outliers this measure of center is preferred
Median
Data over time
Plot
this measure of center is the middle value when data are arrange in order
median
display percentages for two catorgjires
two way table
a numerical summary calculated from a sample data
statistic
Data value lies far away from the rest of the observations
Outlier
divides data value into a stem and leaf
Seen and leaf plot
this measure of center is calculated by adding all values
mean
uses a stem and leaf boxes to divide categories
leaf plot
a variable that takes numerical value resulting from counting
quant variable
A student calculates the men but forgets units
Putting solution into context