Worksheet: Grouped Frequency Tables: Estimating the Mode and Identifying the Modal Class

In this worksheet, we will practice using grouped frequency tables to estimate the mode and Identify the modal class.

Q1:

Some sentences are taken from a book, and the number of words per sentence is counted.

Number of Words1–67–1213–1819–2425–30
Frequency1520454723

Using the given table, calculate an estimated mode for the number of words. Round your answer to two decimal places, if needed.

Q2:

Scarlett works in a call center. She records the duration of each call in the table.

Call Duration (Minutes)1–45–89–1213–1617–20
Frequency240453013

Calculate an estimated mode number of minutes, rounded to two decimal places if needed.

Q3:

Matthew likes collecting stamps. The cost of his favorite stamps is represented by the given table.

Stamp Price ($𝑃)19.5<𝑃24.524.5<𝑃29.529.5<𝑃34.534.5<𝑃39.5
Frequency25405035

Use the table to calculate an estimated mode for the prices. Round your answer to two decimal places, if needed.

Q4:

The table shows some students' math test scores.

Score0101121223233434454
Frequency2530103

Calculate an estimation for the modal score of the math test. Write your answer to two decimal places.

Q5:

The table represents the time taken by some people to travel to work.

Time (𝑡 minutes)4.5𝑡<9.59.5𝑡<14.514.5𝑡<19.519.5𝑡<24.5
Frequency101573

Calculate an estimation for the modal number of minutes the people take to travel to work. Write your answer to two decimal places if needed.

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