APSTATS Unit 1: One-Variable Data

Front

What is a perfectly symmetrical distribution?

Back

A distribution where the mean, median, and mode are all equal, resulting in a balanced shape on both sides of the center.

Front

What does IQR stand for in statistics?

Back

Interquartile Range, which measures the spread of the middle 50% of a data set.

Front

How do you calculate the IQR?

Back

IQR = Q3 - Q1, where Q3 is the third quartile and Q1 is the first quartile.

Front

What is the difference between the shortest and longest distance in a data set?

Back

It is known as the range, calculated by subtracting the minimum value from the maximum value.

Front

What does it mean if a distribution is skewed left?

Back

It means that the left tail of the distribution is longer or fatter than the right tail, indicating that the majority of the data points are concentrated on the right.

Front

What does it mean if a distribution is skewed right?

Back

It means that the right tail of the distribution is longer or fatter than the left tail, indicating that the majority of the data points are concentrated on the left.

Front

What is a dot plot?

Back

A dot plot is a simple visual representation of data where each data point is represented by a dot above a number line.

Front

What is the mode of a data set?

Back

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

Front

What is the median of a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

Front

What is the mean of a data set?

Back

The mean is the average of all the values in a data set, calculated by dividing the sum of the values by the number of values.