Deep Sea Diving

Purpose

This is a level 2 statistics activity from the Figure It Out theme series.
A PDF of the student activity is included.

Achievement Objectives
S2-1: Conduct investigations using the statistical enquiry cycle: posing and answering questions; gathering, sorting, and displaying category and whole-number data; communicating findings based on the data.
Student Activity

Click on the image to enlarge it. Click again to close. Download PDF (481 KB)

Specific Learning Outcomes

create graphs for a given data set

answer questions based on the graphs

Required Resource Materials
FIO, Level 2-3, Theme: Under the Sea, Deep-sea Diving, pages 16-17

A ruler

Graph paper

Activity

Graphs are an excellent visual solution to the diving depth problem. They depict the relationship between the creature and its favoured living depth.
In the case of Billy Bends, the depth which Delilah should go to is the depth that is common to the two creatures:

To draw suitable graphs for each sea creature, students will first need to decide on the vertical scale. This is determined by the greatest depth one of the creatures is found at. The graphs for each customer are shown in the answers.
To find the solution to question 3, students may draw a graph for all the sea creatures or scan the table for depth ranges that include 22 metres. This means that the creatures that are likely to be seen at that depth will be whales, John Dory fish, and sea horses.

1. Between 4 m and 8 m (common to both sea creatures)

2.

Attachments