What are the two types of quantitative variables and how do they differ?

Discrete and continuous variables differ.

• Discrete variables are countable.

• Continuous variables can be measured.

• Different data types for analysis.

Cumulative frequency plots are useful for estimating ___ and ___ of a dataset.

Cumulative frequency plots are useful for estimating percentiles and quartiles of a dataset.

True or False: A histogram displays the frequency of observations in bins without touching bars.

False. A histogram's bars touch each other because the variable is quantitative and continuous.

What is the purpose of using SOCS when describing the distribution of quantitative data?

SOCS describes data distribution.

• Shape reveals overall trend.

• Outliers indicate anomalies present.

• Center shows typical value.

• Spread indicates variability range.

Fill in the blank: Dotplots are best used for ___ datasets where we want to see every value.

Small

Riddle: I can show the shape of data and help reveal outliers, but with too many values, I become cluttered. What am I?

A dotplot

What is the significance of choosing the right bin width in a histogram?

Choosing the right bin width matters.

• Affects histogram's clarity.

• Too few bins hide details.

• Too many bins confuse patterns.

Describe how a stemplot displays quantitative data.

A stemplot shows data distribution.

• Splits values into stems and leaves.

• Stem shows leading digits.

• Leaf represents final digit.