Statistics Vocabulary Quiz

What is the definition of "distribution"?

• The way that something is spread out or shared.

• Having two sides that are exactly the same.

• The average of a set of numbers.

• The middle number in a set of numbers.

What is the definition of "mode"?

• The way that something is spread out or shared.

• Having two sides that are exactly the same.

• The average of a set of numbers.

• The number that appears most often in a set of numbers.

What is the example sentence for the word "mean"?

• The teacher made a distribution of the books to each student in the class.

• The butterfly's wings are symmetrical, with the same pattern on each side.

• The mean of the numbers 2, 4, and 6 is 4.

• The mode of the numbers 2, 2, 4, and 6 is 2.

What does a frequency curve represent?

• A graph showing how often different values appear in a set of data

• A graph showing the relationship between two variables

• A graph showing the distribution of a single variable

• A graph showing the correlation between two datasets

What is a point of inflection on a curve?

• A point where the curve changes direction

• A point where the curve reaches its maximum

• A point where the curve is flat

• A point where the curve intersects the x-axis

How does a concave down curve differ from a concave up curve?

• It curves downwards

• It curves upwards

• It forms a straight line

• It forms a circle

Which word describes a frequency curve with only one peak?

• Unimodal

• Bimodal distribution

• Skewed distribution

• Concave up

In a "skewed distribution," where are most values located?

• On one side of the average

• Evenly distributed

• At two peaks

• Randomly scattered

What is the definition of "median"?

• The average of a set of numbers.

• The number that appears most often in a set of numbers.

• The middle number in a set of numbers when they are arranged from least to greatest.

• Having two sides that are exactly the same.

What does a normal curve represent?

• A curve that shows the average of a data set.

• A special type of frequency curve that looks like a bell, showing most values close to the average.

• A curve that shows the maximum and minimum values of a data set.

• A curve that shows the median of a data set.