Basic Terms
What is the average of a set of numbers called?
Mean
What type of data uses numbers?
Quantitative
What chart uses bars to show data?
Bar chart
What is the probability of getting heads in a coin toss?
0.5
What is a part of the population used for study?
Sample
What is the middle number in a sorted data set?
Median
What type of data uses categories or labels?
Qualitative
What chart shows parts of a whole using slices?
Pie chart
What is the chance of rolling a 3 on a 6-sided die?
1/6
What is the entire group being studied?
Population
What is the number that appears most often?
Mode
What type of variable can only take whole values?
Discrete
What graph shows data points and a trend line?
Line graph
What word means the likelihood of an event happening?
Probability
What is a sample where every member has an equal chance?
Random sample
What is the difference between the highest and lowest values?
Range
What type of variable can take any value within a range?
Continuous
What plot shows quartiles and outliers?
Box plot
What are events that cannot happen at the same time?
Mutually exclusive
What is bias in a survey?
Systematic error
What is the measure of how spread out numbers are from the mean?
Standard deviation
What is data collected by observation or experiment called?
Primary data
What type of graph displays frequency of data intervals?
Histogram
What is the formula for probability?
Favorable outcomes / Total outcomes
What is a survey of every member of a population?
Census