A student wants to estimate the number of daisy plants in a 500 mfield. She uses a 1 m² quadrat to sample the field.
Figure 9 shows the results for the number of daisy plants counted in six areas
sampled with the quadrat
sample
number
number of
daisy plants
mean diameter of
daisy plants/cm
1
5
7
2
2
2
3
6
9
4
3
3
5
4
5
6
4
6
Figure 9
Calculate the mean number of daisy plants for the six samples.
(1)

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.