A Level Statistics question

books21082000

At a college, thirty percent of the student study neither Art nor Biology. Thirty percent of students study Biology. Twenty percent of Art students study Biology. Find the percentage of students:
a) who study both Art and Biology (7)
b) Who study exactly one of these two subjects (3)

Reply 1

mqb2766

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Original post by books21082000

At a college, thirty percent of the student study neither Art nor Biology. Thirty percent of students study Biology. Twenty percent of Art students study Biology. Find the percentage of students:
a) who study both Art and Biology (7)
b) Who study exactly one of these two subjects (3)