A report concerns a universal set of 40 club members. It states that 28 members swim, 25 cycle, and

Question

A report concerns a universal set of 40 club members. It states that 28 members swim, 25 cycle, and 8 do neither. Determine whether all three figures can be correct. Show a calculation and explain your conclusion.[3]

Accepted Answer

Yes: swim only 7, both 21, cycle only 4, neither 8.

Checking whether survey data are possible

Checking whether survey data are possible

Solution:

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