Dat and Probability Quiz

What is a box plot?

• A graph that shows the frequency of data within equal intervals.

• A method of visually displaying a distribution of data values by using median, quartiles, and extremes of a data set.

• A type of bar graph that represents categorical data with rectangular bars.

• A pie chart that displays data as slices of a circle, showing the proportion of each category.

What does the term 'complementary events' refer to in probability?

• Events that cannot occur at the same time.

• The events of one outcome happening and that outcome not happening.

• The likelihood of two independent events occurring together.

• The ratio of the number of favorable outcomes to the total number of possible outcomes.

What is a double box plot?

• A single box plot showing the distribution of data over different periods.

• Two pie charts compared side by side.

• Two box plots graphed on the same number line.

• A box plot with an additional set of data superimposed.

What is the interquartile range?

• The range of the entire data set.

• The distance between the minimum and maximum data values.

• The distance between the first and third quartiles of a data set.

• The average value of the data set.

What is the lower quartile?

• The median of the upper half of data.

• The median of the lower half of data.

• The average value of the lower half of the data set.

• The value below which 25% of the data falls.

How is the mean (average) of a data set calculated?

• By multiplying the sum of all data values by the number of items.

• By adding all data values and dividing by the number of items in the data set.

• By finding the middle value when the data set is arranged in ascending order.

• By subtracting the smallest data value from the largest data value.

What is the median of a data set?

• The value that appears most frequently in a data set.

• The difference between the highest and lowest values in a data set.

• A measure of center in a set of numerical data.

• The sum of all data values divided by the number of items in the data set.

What is the definition of "mode" in a data set?

• The chance an event will occur.

• The number that appears the most often in a data set.

• The difference in the greatest and least in a data set.

• A ratio that compares the frequency of each category to the total.

What does "outcome" refer to?

• An outcome that occurs by chance.

• The values that divide a set of data into four equal parts.

• Any one of the possible results of an action.

• A data value that is either much more or much less than the median.

What are "outliers" in a data set?

• The values that divide a set of data into four equal parts.

• The number that appears the most often in a data set.

• A data value that is either much more or much less than the median.

• The difference in the greatest and least in a data set.