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5.1 Health and communicable disease

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Question 24
H

A scientist studies the association between drinking-water treatment and cholera.

Table

GroupWater supplyPeople studiedCholera cases
Ptreated120024
Quntreated80040

Which statement correctly compares the percentage of people with cholera?

[1]
A

the percentage in Q is 1.5 times the percentage in P

B

the percentage in Q is 2.5 times the percentage in P

C

the percentage in P is 2.5 times the percentage in Q

D

the percentage in P is 1.5 times the percentage in Q

Markscheme

5.1 Health and communicable disease Questions

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

43 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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