Statistics Review

The area of a normal distribution is equal to its probability.

• True
• False

Statistics is the math of gathering, describing, and analyzing data.

• True
• False

198 people bought a cake pop from Marcy on her birthday. What is this an example of?

• Descriptive statistics
• Inferential statistics

Which of these statements are qualitative?

• Number of cars in a parking lot
• Weight of the can on the windowsill
• Rankings of your favorite musician
• The amount of sugar needed for a cake

The weight of various toys: 5.6 lbs, 29.8 lbs, 2.3 lbs. What is this an example of?

• Discrete
• Continuous

Data at this level is quantitative and there is no meaningful zero.

• Ratio
• Nominal
• Interval
• Ordinal

A stratified sample is a sample of each member in the group.

• True
• False

Lauren is doing a research project and has to collect data on the growth of pea plants for six weeks. What type of study is this?

• Longitudinal study
• Cross-sectional study
• Meta-analysis
• Case study

Confounding variables are factors of the treatment that cause an effect on the group.

• True
• False

Processing errors are errors that occur from the data being processed.

• True
• False