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Question 1

A section of the Murray River is known to contain four types of fish. A random sample of fish is taken from the river and the results are recorded. The fish are released back into the river.

Type of fish
Murray cod Redfin Catfish Murray perch
Number in sample
13 10 12 3
a The total number of fish taken was:
check answer for question 1a.
b The percentage relative frequency of redfin, correct to the nearest whole number was:
check answer for question 1b.