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5.1 Health and communicable disease

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Question 14

A health survey records tuberculosis (TB) among residents of two types of housing.

The results are shown in the table.

Type of housingResidents surveyedResidents diagnosed with TB
poorly ventilated150045
well ventilated200040

Suppose the residents of poorly ventilated housing had been diagnosed with TB at the same rate as the residents of well-ventilated housing.

How many fewer of the 1500 residents of poorly ventilated housing would have been diagnosed with TB?

[1]
A

5 fewer residents

B

20 fewer residents

C

30 fewer residents

D

15 fewer residents

Markscheme

5.1 Health and communicable disease Questions

  1. GCSE
  2. /Biology
  3. /5.1 Health and communicable disease

112 exam-style questions on Edexcel GCSE Biology 5.1 Health and communicable disease, covering 5.1.1 Communicable and non-communicable diseases, 5.1.2 Disease susceptibility interactions, 5.1.3 Pathogens as disease-causing organisms, 5.1.4 Common infections, 5.1.5 Spread and prevention of pathogens, 5.1.6 Lifecycle of a virus, and 5.1.7 Spread and prevention of STIs. Each one has a worked solution and a mark scheme showing where the marks go.

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