Box-and-Whisker+Plots

A song to help you remember averages to watch as a class. media type="youtube" key="QH2obAPwfqk?rel=0" height="390" width="480" align="center"
 * __Box-and-Whisker Plots __**

Open this file with the notes for today's lesson and then save the file to your laptop.

Use this five-point summary as a guide to help you answer the questions below:  ﻿1. Use the box-and-whisker plots below to find the median, range and interquartile range.   2. These box-and whisker plots represent the distance travelled to school by Year 9 and Year 10 students.  a) Which group does more travelling and why? b) What is the interquartile range for Year 9? c) What is the interquartile range for Year 10?  3. Ray and Ken play 40 games of golf over a one-year period. Their scores are shown in the double box-and-whisker plot below.    a) What is the five-point summary for Ken's scores? <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 20px;">b) Which golfer's scores have the smaller range? <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 20px;">c) Which golfer's scores have the smaller interquartile range? <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 20px;">d) Which golfer do you think is the most consistent and why?  <span style="color: #008000; font-family: 'Comic Sans MS',cursive; font-size: 20px;">4. Find the five-point summary for the following set of data and use it to construct a box-and-whisker plot. The graph must be drawn to scale.  <span style="color: #008000; font-family: 'Comic Sans MS',cursive; font-size: 20px;">7, 7, 8, 8, 8, 9, 9, 9, 10, 12, 12, 12    <span style="font-family: 'Comic Sans MS',cursive; font-size: 20px;">5. <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Find the five-point summary for the following set of data and use it to construct a box-and-whisker plot. The graph must be drawn to scale.   <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 150%;"> 14, 19, 29, 36, 40, 43, 43, 44, 46, 46, 47, 49 <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">﻿Now try the activity from the website below. <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Measures of Average <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Here is an extension question for fast finishers. <span style="color: #008000; font-family: 'Comic Sans MS',cursive; font-size: 150%;">﻿6. Use this website to enter the data below to create the box-and-whisker plots. <span style="color: #008000; font-family: 'Comic Sans MS',cursive; font-size: 150%;">a) 43, 37, 42, 48, 39, 39, 40, 40, 44, 47, 45, 44 <span style="color: #008000; font-family: 'Comic Sans MS',cursive; font-size: 150%;">b) 75, 78, 63, 59, 68, 72, 74, 83, 87, 86, 59, 75, 82, 82, 84, 85, 77, 76, 70, 83