ARTHIST 2DF3 Study Guide - Nail Polish, Carcinus Maenas, Standard Deviation

• School: McMaster University
• Department: Art History
• Course: ARTHIST 2DF3
• Professor: Lady Aulakh

Document Summary

Invasive species sta-s-cs - the green crab. A group of turner fenton students collected over 300 crabs on a sunny aaernoon in may, 2011. Each was "sexed", and measured (widest distance across the carapace), and the data recorded. Each was also marked with nail polish, so that they could be idenk ed if captured again in future studies. Using the data on the anached page, complete the following: Prepare a histogram (including a tally chart) for: a. b. c. Size of all crabs caught. Calculate mean, median and mode for size of males, females, and all crabs sampled. Calculate the standard deviakon for size of males, females, and all crabs sampled.