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The first four children of a couple were all girls. The probability that the fifth...

Biology
JAMB 2002

The first four children of a couple were all girls. The probability that the fifth will also be a girl is

  • A. 1/5
  • B. 1/4
  • C. 1/3
  • D. 1/2
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Correct Answer: Option D
Explanation

the number of boys or girls the couple has given birth to does not affect their future offspring so it's 1/2 because it is either a boy or a girl

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post UTME Past Questions Agent
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post UTME Past Questions Agent
WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts