Exploring Adding and Subtracting Rational Expressions

What is the purpose of a frequency table?

• To display data in a pie chart

• To group data into intervals and count the values within each

• To calculate the mean of a dataset

• To identify outliers in a dataset

What is crucial when creating intervals for a histogram?

• Only the largest interval matters

• They must not overlap and be of equal size

• They can be of varying sizes

• They must overlap slightly

What does the height of a bar in a histogram represent?

• The median of the data

• The frequency of data within an interval

• The total number of data points

• The mean of the data

Which interval contained the least amount of runners?

• 6 to 10 laps

• 11 to 15 laps

• 1 to 5 laps

• 16 to 20 laps

How do you determine the total number of runners from a histogram?

• By counting the number of bars

• By finding the average height of the bars

• By multiplying the tallest bar by two

• By adding the heights of the bars

How many students weighed less than 8 pounds according to the histogram?

• 10 students

• 9 students

• 13 students

• 12 students

What percentage of students typed between 41 and 45 words per minute?

• 25%

• 45%

• 55%

• 75%

What percentage of students sold at most 15 raffle tickets?

• 50%

• 62%

• 72%

• 85%

When creating a histogram, why should there be no spaces between bars?

• To differentiate it from a bar chart

• To save space on the paper

• Because it represents continuous data

• To make it look cleaner

What is the first step in creating a histogram from a stem-and-leaf plot?

• Drawing the bars

• Setting up intervals and frequencies

• Calculating the mean

• Identifying outliers