CHAPTER 2 / FREQ. DIST.

What is a frequency distribution?

• A graph showing the distribution of data over time

• A table that shows classes or intervals of data with a count of the number of entries in each class

• A list of data entries collected from a survey

• A mathematical formula that predicts data trends

What does the frequency, f, of a class represent?

• The difference between the highest and lowest data entries

• The average value of the data entries in the class

• The total number of classes in the distribution

• The number of data entries in the class

Tags

CCSS.6.SP.B.5A

What is the class width in a frequency distribution?

• The distance between lower (or upper) limits of consecutive classes

• The total range of the data divided by the number of classes

• The highest value in the class minus the lowest value

• The number of classes divided by the total number of data entries

How is the relative frequency of a class calculated?

• By multiplying the class frequency by the total range of the data

• By dividing the class frequency by the total number of classes

• By dividing the class frequency by the sample size

• By adding the frequency of the class to the sample size

Tags

CCSS.8.SP.A.4

What does the cumulative frequency of a class show?

• The maximum frequency that can be achieved by any class

• The sum of the frequency for that class and all previous classes

• The average frequency of all classes up to the current one

• The difference between the class frequency and the sample size

What is the purpose of class boundaries in a histogram?

• To calculate the relative frequency of each class

• To separate different histograms on the same graph

• To indicate the start and end points of each class, ensuring bars touch

• To highlight the maximum and minimum data entries

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What is an ogive graph?

• Cumulative Frequency Graph
• Frequency Graph
• Relative Frequency Graph
• A pie chart

Approximately how many items were longer than 34 cm?

• None
• 8
• 7.5
• 7

Tags

CCSS.2.MD.D.9

Class Width = (Largest - Smallest)/2

• True

• False

Tags

CCSS.6.SP.B.5C

A table that shows classes or intervals of data entries with a count of the number of entries in each class. 

• Frequency distribution
• Frequency polygon
• Histogram
• Ogive