Representing Data

What is a histogram?

A chart that shows frequency of data

A chart that shows percentage of data

A chart that shows mean of data

A chart that shows mode of data

How is a pie chart different from a bar graph?

Pie chart is 3D while bar graph is 2D

Pie chart shows percentages, while bar graph shows frequencies

Pie chart can only be used for negative numbers

Bar graph can only be used for positive numbers

What does the ‘mean’ of a data set represent?

The most frequently occurring number

The middle number

The average of all numbers

The difference between the highest and lowest numbers

How do you calculate the median of a data set?

Add all numbers and divide by the total count

Find the number that appears most often

Subtract the smallest number from the largest number

Arrange numbers in ascending order and find the middle number

What is the mode of a data set?

The number that appears most often

The average of all numbers

The middle number

The difference between the highest and lowest numbers

The difference between the highest and lowest numbers?

Using a pie chart

Using a bar graph with bars extending below the x-axis

Negative numbers cannot be represented on a graph

Using a scatter plot with points below the x-axis

What is a scatter plot and when is it used?

A plot used to represent categorical data

A plot used to represent numerical data

A plot used to show the relationship between two variables

A plot used to show the distribution of a single variable

What is the range of a data set?

The most frequently occurring number

The average of all numbers

The middle number

The difference between the highest and lowest numbers

How do you calculate the interquartile range of a data set?

Subtract the first quartile from the third quartile

Add the first quartile and the third quartile

Divide the sum of all numbers by the total count

Find the number that appears most often

What does a box and whisker plot represent?

The mean, median, and mode of a data set

The minimum, first quartile, median, third quartile, and maximum of a data set

The frequency of each number in a data set

The percentage of each category in a data set

Representing Data

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