Providing a bank of additional exercises written to complement the course textbooks, these books also include links to the textbook exercises, helping to plan homework or consolidation, and answers to the questions, providing the opportunity for students to self-test.(b) Use your diagram to estimate: (i) the percentage of the population 16 years of age or younger (ii) the percentage of the population between 16 and 65 years of age Exercise 4.4 Links: 4G, H 1 The marks obtained by ... 21-30 6 31-40 12 41- 50 47 51-60 62 61-70 79 71-80 25 81-90 13 91-100 2 Age Frequency (10000) 0- 10 38 11-20 67 21-30 102 31-40 87 41-50 48 51-60 25 61-70 12 71-80 7 81-90 4 anbsp;...

Title | : | London GCSE Mathematics |

Author | : | Gareth Cole |

Publisher | : | Heinemann - 1998 |

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