EPY 4214 STATS Final Exam Review

Front

What is the primary purpose of inferential statistics?

Back

To make predictions about populations based on sample data.

Front

What does CR stand for in statistics?

Back

Critical Region.

Front

What does Descriptive Statistics help us to do?

Back

Organize data and represent data.

Front

In a normal distribution, what percent of the data is within 2 standard deviations from the mean?

Back

95%.

Front

What characterizes a positively skewed distribution?

Back

The tail extends towards higher values.

Front

What is the difference between descriptive and inferential statistics?

Back

Descriptive statistics summarize data, while inferential statistics make predictions about populations.

Front

What is a sample in statistics?

Back

A subset of a population used to represent the whole.

Front

What is a population in statistics?

Back

The entire group that is the subject of a statistical study.

Front

What is the mean in statistics?

Back

The average of a set of numbers.

Front

What is the median in statistics?

Back

The middle value when data is ordered.