Answer these questions

1. What is data? Evidence systematically collected to answer a research question
2. What is a population? The complete set of people that our hypothesis will apply to
3. What is a sample? A small set of participants drawn from the population, usually at random
4. What is variability? Differences between people and situations.

Fill in the gaps

1. Descriptive statistics are used to describe patterns in data sets.
2. We can calculate uncertainty using inferential statistics.