Mathematics, 05.03.2021 16:00 tejasheree
(i). In a survey about colour liking it was determined that everyone surveyed liked at least
one of the three colours (Red, Green and Blue). 30% liked red, 40% liked green and 50%
liked blue. 10% liked both red and green, 5% liked both green and blue, while 10% liked
both red and blue. Determine the proportion
a. That liked red only (1 mark)
b. That liked blue only (2 marks)
c. That liked green only (2 marks)
d. That liked all the colours
Answers: 1
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(i). In a survey about colour liking it was determined that everyone surveyed liked at least
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