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Probability, STD2 EQ-Bank 22

A survey of 50 students found that:

  • 28 students study Mathematics (set \(M\))
  • 22 students study Physics (set \(P\) )
  • 12 students study both Mathematics and Physics.
  1. Draw a Venn diagram to represent this information.   (2 marks)

    --- 6 WORK AREA LINES (style=lined) ---

  2. How many students study Mathematics but not Physics?   (1 mark)

    --- 2 WORK AREA LINES (style=lined) ---

  3. If a student is chosen at random, what is the probability that they do not study either subject?   (1 mark)

    --- 2 WORK AREA LINES (style=lined) ---

Show Answers Only

a.
       
 

b.    \(\text{Using the Venn diagram:}\)

\(\text{Number who study Maths but not physics = 16}\)
 

c.    \(P(\text{study both}) = \dfrac{12}{50}=24\%\)

Show Worked Solution

a.
       
 

b.    \(\text{Using the Venn diagram:}\)

\(\text{Number who study Maths but not physics = 16}\)
 

c.    \(P(\text{study neither}) = \dfrac{12}{50}=24\%\)

Filed Under: Venn Diagrams and Expected/Relative Frequency Tagged With: Band 4, smc-6936-10-Venn Diagrams, syllabus-2027

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