Unit 1 - Review

Front

What is the mean of a set of numbers?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the total count of numbers.

Front

What happens to the mean when an outlier is removed?

Back

Removing an outlier can either increase or decrease the mean, depending on whether the outlier is above or below the mean.

Front

What type of graph is best for showing the number of miles different runners ran during practice?

Back

A Line Plot is best for representing this data as it shows individual data points clearly.

Front

What is a representative sample?

Back

A representative sample accurately reflects the characteristics of the larger population from which it is drawn.

Front

What type of data is collected when measuring time taken to run a mile?

Back

Numerical data, as it involves measurable quantities.

Front

What happens to the mean if a low score is replaced with a higher score?

Back

The mean will increase because the overall average will rise.

Front

What is categorical data?

Back

Categorical data represents characteristics or qualities that can be divided into groups or categories.

Front

What is numerical data?

Back

Numerical data consists of numbers that can be measured or counted.

Front

How do you calculate the mean?

Back

Add all the numbers together and divide by the total number of values.

Front

What is an outlier?

Back

An outlier is a value that is significantly higher or lower than the other values in a data set.