Frequency Distribution Quiz

What is a class in a frequency distribution?

• a) A specific data point

• b) A range of data values

• c) The number of occurrences

• d) The midpoint of a range

Tags

CCSS.HSS.ID.A.1

Which of the following represents the lower class limit?

• a) The smallest value within the class

• b) The largest value within the class

• c) The value that separates one class from the next

• d) The midpoint of the class

The upper class limit is:

• a) The highest value in the class

• b) The midpoint of the class

• c) The boundary separating adjacent classes

• d) The difference between consecutive lower limits

How do you calculate the class boundaries?

• a) Add 0.5 to the upper class limit

• b) Subtract 0.5 from the lower class limit

• c) Add and subtract 0.5 from class limits

• d) Subtract the lower class limit from the upper class limit

What is the midpoint of a class interval?

• a) The average of the upper and lower class limits

• b) The difference between the upper and lower class boundaries

• c) The frequency divided by the number of classes

• d) The sum of all frequencies

The frequency of a class refers to:

• a) The total number of data points

• b) The number of data points within that class

• c) The difference between class limits

• d) The sum of class midpoints

Relative frequency is calculated by:

• a) Dividing the frequency of a class by the total number of data points

• b) Dividing the midpoint by the frequency

• c) Multiplying the class limits by the frequency

• d) Subtracting the lower limit from the upper limit

Tags

CCSS.HSS.ID.B.5

What is the purpose of a cumulative frequency distribution?

• a) To show the total number of data points in each class

• b) To show the sum of frequencies for all classes up to a certain class

• c) To find the midpoint of the data

• d) To calculate the class boundaries

Which of the following is true about class width?

• a) It is calculated by subtracting the lower class limit from the upper class limit.

• b) It is the difference between consecutive midpoints.

• c) It is the difference between the upper and lower class boundaries.

• d) It is found by adding the frequencies of consecutive classes.

Tags

CCSS.HSS.ID.A.1

Cumulative frequency at a certain class includes:

• a) Only the frequency of that class

• b) The total of the frequencies of all classes before and including that class

• c) The difference between the current class frequency and the previous one

• d) The product of frequency and relative frequency