7th Grade PSSA Practice Test (2020 - Probability & Geometry)

Front

What is the formula for the area of a circle?

Back

Front

How do you find the diameter of a circle if you know the radius?

Back

Front

What is the relationship between mean, median, mode, and range in a data set?

Back

Mean is the average, median is the middle value, mode is the most frequent value, and range is the difference between the highest and lowest values.

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

What does it mean if a sample is biased?

Back

A biased sample is one that does not accurately represent the population from which it is drawn, leading to skewed results.

Front

What is the mode of a data set?

Back

The mode is the value that appears most frequently in a data set.

Front

How do you calculate the range of a data set?

Back

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities (e.g., colors, names), while quantitative data involves numerical values (e.g., height, weight).

Front

What is the significance of the mean in a data set?

Back

The mean provides a measure of central tendency, indicating the average value of the data set.

Front

What is a survey?

Back

A survey is a method of collecting data by asking people questions to gather information about their opinions, behaviors, or characteristics.