Categorical vs Quantitative
Data that uses labels or categories instead of numbers.
What is categorical data
Data that can only take whole numbers and is countable.
What is discrete data
A graph that shows individual data values using dots.
What is a dot plot
A graph that groups data into intervals and uses bars that touch.
What is a histogram
A graph that shows the five-number summary of a data set.
What is a box plot?
Data that can be measured or counted using numbers.
What is quantitative data
Data that can take any value, including decimals.
What is continuous data
A dot plot id best used for
What is small data sets and exact values
What type of data is best displayed using a histogram?
What is quantitative data?
What are the five numbers shown in a box plot?
Minimum, Q1, median, Q3, maximum
Favorite movie genre is what type of data?
What is categorical data?
Number of students in a classroom is what type of data?
What is discrete data
What does stacking dots in a dot plot show?
What is frequency
What do the bars in a histogram represent?
What is frequency within intervals
What part of a box plot shows the middle 50% of data?
What is the interquartile range (IQR)
Test scores are an example of this type of data.
What is quantitative data
Height of students is what type of data?
What is continuous data
What is one advantage of a dot plot?
It shows each individual data value clearly.
Why do histogram bars touch?
Because the data is continuous and grouped in intervals.
What is one thing a box plot is especially useful for showing?
Spread, skew, and outliers in data
Why is shoe size quantitative and not categorical?
Because it is numerical and be measured/ordered
Is time discrete of continuous? Explain
Continuous because it can be measured to any point
What does a large cluster of dots in on area suggest?
High frequency in that range
What does a right-skewed histogram show?
Most data is on the left with a log right tail
If the median is closer to Q1, what does that suggest?
Data is skewed right