In a sampling investigation the mean number of daisies per quadrat in a field is 4.5. The field is 600 m² and each quadrat is 1 m². What is the estimated total number of daisies?
Answer and explanation
Correct answer: B. 2700
- Step 1: Each quadrat covers 1 m², so the density is 4.5 per m².
- Step 2: Total = 4.5 × 600 = 2700.
Answer
2700.
Why not the others: 4.5: this is the mean per quadrat. 600: this is the area of the field. 135 000: the mean was multiplied by 600 twice.
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