S2.2 Answers. 1 a i Boys are taller than girls. ii Primary. b i Teachers are better at mental arithmetic than pupils. ii Primary

Transcription

1 S2.2 Answers 1 a i Boys are taller than girls. ii Primary b i Teachers are better at mental arithmetic than pupils. ii Primary Countries with bigger areas have larger populations. d i The weather in New York is warmer than the weather in London. e i The value of cars depreciates as they get older. f i Pupils who watch more television get poorer GCSE results. g i Boys are better at maths than girls. ii Primary or secondary h i Boys play more sport than girls outside school. ii Primary or secondary 2 a i Heights and weights ii Pupils in school b i Number of hours of sunshine and rain per month for Egypt and Crete ii Internet Height and reaction time from experiment d i Lengths of television programmes ii Internet or TV listings magazine Original Material Cambridge University Press

2 e i Time spent on Internet and time watching TV f i Distance from school and amount of homework done per night g i Number of books read by girls and boys 3 a i Cheaper newspapers are more popular. ii Newspaper prices, peoples favourite newspapers iii Questionnaire, random sample of people in town b i It rains more in Newcastle than Penzance. ii Number of hours of rain, or mm of rain, per month in Newcastle and Penzance iii Internet, data collection sheet Teams that have more foreign players win more matches. ii Number of foreign players in Premier league teams, number of matches won and lost iii Internet, data collection sheet d i Taller children have longer arms. ii Height of children and lengths of their arms iii Collect data from pupils in class, data collection sheet 4 a Total on dice Tally Frequency 2 3 b Number of words Tally Frequency Original Material Cambridge University Press

3 c Height, h (cm) Tally Frequency 120 h < h < 130 d Shoe sizes Tally Frequency e Time: 09:30 Number of vehicles Tally Frequency a i There isn t a way to rate a mobile phone as bad. ii The question doesn t specify whether the number of texts is per day or per week or per month. iii Only two types of Mobile phone are listed. iv The question doesn t specify whether the number of texts is per day or per week or per month. v There are two boxes that could be ticked. b Check that students have rewritten the questionnaire, addressing the issues from part a. 6 a i How many times a month do you use the library? more than 4 ii How many books do you borrow each time you visit the library? more than 4 b i How many times in a week do you use the school canteen? Original Material Cambridge University Press

4 ii How much money do you spend when you use the school canteen? or more iii What is your favourite meal in the school canteen? Fish and chips Sausages Baked potato Other What sports do you play? Football Rugby Hockey Tennis Badminton Other ii What do you think of the facilities at your local sports centre? Terrible Not very good Okay Good Excellent iii How many times a week do you use your local sports centre? or more iv How far do you live from your local sports centre? 0 < distance 2 km 2 km < distance 4 km 4 km < distance 6 km 6 km or more 7 a i Children who watch more television do less homework. ii Use a questionnaire to find out how much homework pupils do each weekday evening and at the weekend and how much television they watch. iii Ask all the pupils in the class. iv How much television do you watch each weekday evening? How much television do you watch at the weekend? How much homework do you do each weekday evening? How much homework do you do at the weekend? b i People who have longer legs run faster. ii Time people running 100 m and measure the length of their legs. iii Random sample of pupils from each year group. Original Material Cambridge University Press

5 iv Name Time for 100 m (seconds) Length of right leg (cm) Teenagers are quicker at texting than adults. ii Make up a text message. Time a number of pupils in the class writing the message. Then time some adults writing the same message. iii Have one data collection sheet for children and another for adults. iv Name Time to text message (seconds) d i Pupils in year 11 get more homework than pupils in Year 7. ii Use a questionnaire to ask pupils in each year group how much homework they get. Give it to 10% of pupils in Year 7 and 10% of pupils in Year 11. iii Choose pupils randomly. iv What year group are you in? How many times a week so you get set homework? How long do you spend doing homework each weekday evening? How long do you spend doing homework at the weekend? Original Material Cambridge University Press