Question

Out of 500 car owners investigated , 400 owned cas A and 200 owned cars B,50 owned both A and B cars. Is this data correct ? ​

Answer 1

Answer:

no the data is wrong

Explanation:

take n(u) = 500

n(A)=400

n(B)=200

cars owned by both = n(A n B)

=400+200-500 = 100