AP Statistics Ch 1 & 2 Review

Front

What is the relationship between the mean and median in a symmetrical distribution?

Back

In a symmetrical distribution, the mean and median are equal.

Front

What is the five-number summary in statistics?

Back

The five-number summary consists of the minimum, first quartile (Q1), median, third quartile (Q3), and maximum values of a dataset.

Front

How do you calculate the maximum length of the right whisker in a modified boxplot?

Back

The maximum length of the right whisker is determined by the largest value that is not an outlier, which is calculated as Q3 + 1.5 * IQR.

Front

What happens to the range of a dataset if 10 is added to the maximum value?

Back

The range increases by 10.

Front

What is the midrange of a dataset?

Back

The midrange is the average of the maximum and minimum values of a dataset.

Front

Is the midrange a measure of spread or center?

Back

The midrange is a measure of center, not spread.

Front

When is the median approximately equal to the mean?

Back

The median is approximately equal to the mean only for symmetric distributions.

Front

What is an outlier in a dataset?

Back

An outlier is a data point that is significantly different from the other observations in the dataset.

Front

How does adding a constant to all values in a dataset affect the mean?

Back

Adding a constant to all values in a dataset increases the mean by that constant.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the third quartile (Q3) and the first quartile (Q1), representing the middle 50% of the data.