**B2 H - SAMPLE SET 1 Q2**

2) Students used quadrats to estimate the population of dandelion plants on a field

2.1) Describe how quadrats should be used to estimate the number of dandelion plans in a field. [4 marks]

2.2) The field measured 40 m by 145 m.

The students used 0.25 m

The students found a mean of 0.42 dandelions per quadrat.

Estimate the population of dandelions on the field. [2 marks]

2.1) Describe how quadrats should be used to estimate the number of dandelion plans in a field. [4 marks]

2.2) The field measured 40 m by 145 m.

The students used 0.25 m

^{2}quadrats.The students found a mean of 0.42 dandelions per quadrat.

Estimate the population of dandelions on the field. [2 marks]

Estimated population of dandelions = ____________________________

2.3) In one area of the field there is a lot of grass growing in the same area as dandelions.

Suggest why the dandelions may

Suggest why the dandelions may

**not**grow well in this area. [4 marks]**(Total for Question 2 = 10 marks)**