Which two of the following are not characteristics of surveys? 4. Two or more treatments are compared in the study.
B. Data are gathered during the course of the study.
C. One or more treatment groups and a control group are included in
the study.
D. The results of the study are analyzed statistically.

The following characteristics of experiments are not also characteristics of surveys:

- The first one is B. The study compares two or more treatments (possibly including "no treatment").

- The other one is D. The study involves one or more treatment groups and a control group.

Step-by-step explanation:

surveys are tested with one group

Step-by-step explanation:

Area of the circle = πr²

=  π * (14)² =  π*14*14

= 196 π Sq.cm