Statistics

Front

What is the median of a data set with two middle numbers?

Back

Add the two middle numbers and divide it by 2.

Front

What is the first step when creating a box and whisker plot?

Back

Order the data set.

Front

Which measure of central tendency is best for skewed data?

Back

Median.

Front

What is the mean of a data set?

Back

The sum of all values divided by the number of values.

Front

How do you calculate +2 standard deviations from the mean?

Back

Add 2 times the standard deviation to the mean.

Front

What happens to the mean if a significantly larger number is added to the data set?

Back

The mean would go up.

Front

What is the mode of a data set?

Back

The value that appears most frequently.

Front

What is the range of a data set?

Back

The difference between the highest and lowest values.

Front

How do you find the first quartile (Q1) in a data set?

Back

Find the median of the lower half of the data.

Front

What is a box and whisker plot used for?

Back

To display the distribution of a data set.