Match the following. 1. positive response to neutral treatment
parameter
2. breaking a sample group into subgroups
placebo effed
3. means, medians, and modes
block design
4.
when reasonable explanations for an experiment are not
eliminated
cofounding
5. results
outcome

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

ion

step-by-step explanation:

ion ion ion ion ion ion ion ion ion ion ion