Part II consists of a separate question and answer book.

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FURMATH CAT 2B 2Structure of bookNumber ofquestionsNumber of questionsto be answered3 3Directions to studentsMaterialsQuestion and answer book of 5 pages.You may bring to the CAT up to four pages (two A4 sheets) of pre-written notes.You may use an approved scientific and/or graphics calculator, ruler, protractor, set-square and aids forcurve-sketching.The taskDetach the formula sheet from the centre of the Part I book during reading time.Ensure that you write your student number in the space provided on the cover of this book. Answer allquestions.The marks allotted to each question are indicated at the end of the question.There is a total of 10 marks available.␣You need not give numerical answers as decimals unless instructed to do so. Alternative forms mayinvolve, for example, π, e, surds or fractions.Unless otherwise indicated, the diagrams in this book are not drawn to scale.All written responses should be in English.At the end of the taskPlace the answer sheet for multiple-choice questions (Part I) inside the front cover of this question andanswer book (Part II).
3 FURMATH CAT 2BSpecific instructions for studentsThere are three short-answer questions.Answer all parts of the questions in the spaces provided in this question and answer book.The table below shows the monthly rainfall (in millimetres) and the number of days on which it rained eachmonth for a Victorian rural city in 1998.Table 1: Monthly rainfall data for 1998Jan Feb Mar Apr May June July Aug Sept Oct Nov DecRainfall (mm) 28 31 33 41 53 65 64 56 47 48 34 26Number of rain days 4 5 3 6 9 11 14 12 9 8 6 5Question 1a. Complete the following table by classifying each of the variables in the table as numerical or categorical.VariableType of dataMonthRainfall (mm)numericalNumber of rain days2 marksb. Use the information in Table 1 to determine the percentage of months in 1998 which had more than 10rain days. Write your answer in the space provided.percentage =1 markc. Using the data in Table 1, calculate the standard deviation of the number of rain days. Write your answercorrect to two decimal places in the space provided.standard deviation =2 marksTotal 5 marksTURN OVER
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Part II consists of a separate question and answer book.

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