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Targeting Grade C

GCSE Mathematics. Targeting Grade C. Handling Data Unit 1 Two-Way Tables. If not you need. TOP : Review adding and subtracting Practice 1: Completing two-way tables Practice 2: Reading information from two-way tables Practice 3: Finding probabilities from two-way tables TAIL.

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Targeting Grade C

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  1. GCSE Mathematics Targeting Grade C Handling Data Unit 1 Two-Way Tables

  2. If not you need TOP: Review adding and subtracting Practice 1: Completing two-way tables Practice 2: Reading information from two-way tables Practice 3: Finding probabilities from two-way tables TAIL • Can you… • Fill in a two-way table • Answer questions from a two-way table • Find probabilities from a two-way table • Try a test

  3. Answers • 79 • 6 • 51 • 54 • 196 • 125 • 176 • 450 • 156 • 69 TOP • 26 + 53 • 15 – 9 • 34 + 17 • 86 – 32 • 173 + 23 • 200 – 75 • 13 + 163 • 837 – 387 • 122 + 34 • 192 – 123 Are you ready for the answers ? Lesson

  4. Practice 1:Complete the following tables 1) Students are asked if they prefer to go swimming or to the gym. 2) Some people are asked about their favourite outdoor sport. Lesson

  5. Practice 2: Copy and complete the following two-way table about ways of eating potato and then answer the questions. • How many boys liked mash? • How many teachers preferred new potatoes? • How many girls were asked? • Out of the people who liked chips, how many were boys? Lesson

  6. Practice 3: For the following two-way table answer the questions on probability. A person is picked at random from the sample. • What is the probability the person picked is a boy? • What is the probability the person liked mash? • What is the probability the person was a teacher who preferred new potatoes? • What is the probability that, out of the girls, the person liked chips? • Out of the people who liked chips, what is the probability the person was a boy? Lesson

  7. 100g 200g 300g Total Ground 50 120 Powder 80 35 26 Granules 40 45 Total 135 135 400 TAIL • Coffee is sold in three types and in three weights. • How many people bought 100g of powdered coffee? • How many people bought ground coffee? • Out of the packets weighing 200g, what is the probability the packet bought contained granules? For the following table, copy and complete it, then answer the questions about types of coffee bought. Are you ready for the answers ? Next

  8. 100g 200g 300g Total Ground 15 50 55 120 Powder 80 35 26 141 Granules 40 45 54 139 Total 135 130 135 400 Answers (a) 80 (b) 120 (c) 45/130 Lesson

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