Finding Statistics

What does a symmetric distribution indicate?

• The right and left sides of the distribution are approximately mirror images of each other

• An asymmetrical but generally bell-shaped distribution

• The mode lies off to one side and the mean is typically not equal to the median

• The data points are spread out and not clustered

What is a box plot?

• A graphic way of showing a summary of data using the median, quartiles, and extremes of the data

• A graphical display of data using dots on a number line

• A graph of vertical bars representing the frequency distribution of a set of data

• A summary statistic that describes the typical or middle value in a data set

What is the mean?

• The mean is the highest value in a set of numbers.

• The mean is the lowest value in a set of numbers.

• The mean is the middle value in a set of numbers.

• The mean is the average value of a set of numbers.

What is the standard deviation?

• The standard deviation is the average distance from the mean

• The standard deviation is the lowest value in a set of values.

• The standard deviation is the highest value in a set of values.

• The standard deviation is the average of a set of values.

Which data display is best for finding the median of a data set?

• Box plot

• Dot plot

• Histogram

Which data display is best for finding the values of specific data points?

• Box plot

• Dot plot

• Histogram

What is a box plot good for?

• Finding patterns in large data sets

• Finding specific data values

• Finding summary statistics

• Finding the five-number summary

Which data display is best for finding the mean of a data set?

• Box plot

• Dot plot

• Histogram

Which data display CANNOT be used to find the minimum and maximum values?

• Dot plot

• Box plot

• Histogram

To find the average or mean of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items