Unit Test #1 Review

Front

What is the definition of median?

Back

The median is the middle value in a data set when the numbers are arranged in ascending order.

Front

How do you find the range of a data set?

Back

The range is found by subtracting the smallest value from the largest value in the data set.

Front

What is mode in statistics?

Back

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

Front

What is a dot plot?

Back

A dot plot is a statistical chart that uses dots to represent the frequency of data points.

Front

How do you determine the median from a box plot?

Back

The median is represented by the line inside the box of a box plot.

Front

What does the interquartile range (IQR) represent?

Back

The IQR represents the range of the middle 50% of the data, calculated as Q3 - Q1.

Front

If Q1 is 60 and Q3 is 80, what is the interquartile range?

Back

The interquartile range is 20 (80 - 60).

Front

What percentage of data falls within one standard deviation of the mean in a normal distribution?

Back

Approximately 68% of the data falls within one standard deviation of the mean.

Front

How do you find the maximum value in a data set?

Back

The maximum value is the largest number in the data set.

Front

What is the lower quartile (Q1)?

Back

The lower quartile (Q1) is the median of the lower half of the data set.