Studied by 25 people
Q3
Median of the upper half. Also known as UQ.
Q1
Median of the lower half. Also known as LQ.
Q2
Median or middle value of the data set.
Minimum
Lowest value or lower fence of data before it becomes an outlier. Minimum= Q1-1.5(IQR)
Maximum
Highest value or upper fence of data before it becomes an outlier. Maximum= Q3+1.5(IQR)
Equation for IQR
Q3-Q1
What does a larger IQR or standard deviation say about the data?
It is more spread out.
What data are bar graphs often used to display?
Categorical data
What data are histograms often used to display?
Continuous numerical data
X axis displays the…
Independent variable
Y axis displays the…
Dependent variable
The line of best fit is also described as…
Least squares regression line
Interpolation
Involves making predictions inside the range of values shown.
Extrapolation
Involves making predictions outside of the values shown.
Sample of 100 students is a…
Random sample
Sample of 100 students selecting every 12th student from an alphabetical list is a…
Systematic sample
Choosing 25 students from each year level is a…
Stratified sample
Collecting data from the first 25 students in each year level who express interest in completing a survey is a…
Quota sample
Collecting data from the first 100 students to fill out the survey is a…
Convenience sample
Surveying the entire school is a…
Population sample
Note 
Flashcard (46)