1) You have an investment portfolio comprising many different shares/stocks in several industries (banks, energy, consumer staples, technology etc). Which of the summary techniques below would best show the proportions invested in each industry?

a) Frequency histogram

b) Relative frequency histogram

c) Pie chart as this is categorical data

d) Pie chart as this is quantitative data

e) Frequency table

2)

10.5 28.6 13.0 15.2 15.2 24.8 21.8 23.5 7.9 20.0 5.1 13.7 19.6 14.2 22.4 14.0 18.3 13.7 18.9 5.4 16.5 10.4 30.0 19.8 7.1 12.1 18.5 11.3\fAGE Under 30 years 30 yea rs and over TOTAL Black 20 7D 90 TEA PREFERENCE Herbal Cold 30 100 25 15 55 115 TOTAL 150 110 260 \fWEEKS ON LIST BY AUTHOR (TOP 10) Author 130 121 120 115 110 100 90 Average 85 85 80 Median 76 73 72 70 72 weeks on last F 60 50 40 30 20 10 0 David Paula Kristin EL Anthony Nicholas Stephen Rupi John Fredrik Baldaco Hawkins Hannah James Doerr Sparks King Kaur Grisham BackmThe following grades have been obtained by you in a course of study nancially supported by your boss. Pass Credit Fail Credit Pass Credit Credit Fail Credit Fail Pass Credit Pass Distinction Fail Pass a) What is the frequency of the grade "high distinction" in this data set? D) Your boss wants a break-down of your class results. What will you say is the fail rate {in percentage terms)? c) What is the modal grade for these data? d) Are these categorical or quantitative data? Briefly explain your reasoning in the context of this question. The following contingency table shows the results of a random survey of age and attitude to increasing the legal driving age to 21 years. Agree Disagree Unsure Total Under 25 years 79 18 66 763 25 up to 50 40 3 65 1'08 years Over 50 years 74 31 13 118 Total 1'93 52 144 389 State why the below is a poor graph. WELFARE VS. FULL TIME JOBS 108.6M 101.7M PEOPLE ON PEOPLE WITH A FOX FOX WELFARE FULL TIME JOB NEWS NEWS SOURCE: CENSUS BUREAU, 2011 channel RED SOX BEAT ST. LOUIS CARDINALS 4-2 TO EVEN.WORLD SERIES AT mediamatters.orgHere is a frequency table of weekly rent ($) paid by international university students: Weekly rent ($) Frequency (0, 120] 16 (120, 240] 5 (240, 360] 13 (360, 480] 12 (480, 600] 5Agree Disagree Unsure Total Under 25 years 36 86 94 216 25 up to 50 6 2 75 83 years Over 50 years 24 79 12 115 Total 66 167 181 414