# 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 Words | 1–6 | 7–12 | 13–18 | 19–24 | 25–30 |
---|---|---|---|---|---|

Frequency | 15 | 20 | 45 | 47 | 23 |

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) | 1–4 | 5–8 | 9–12 | 13–16 | 17–20 |
---|---|---|---|---|---|

Frequency | 2 | 40 | 45 | 30 | 13 |

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 | ||||
---|---|---|---|---|

Frequency | 25 | 40 | 50 | 35 |

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.

Score | |||||
---|---|---|---|---|---|

Frequency | 2 | 5 | 30 | 10 | 3 |

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 ( minutes) | ||||
---|---|---|---|---|

Frequency | 10 | 15 | 7 | 3 |

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.