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

q1 a person or thing situated away or detached from the main body or system. a cluster is a a mash of many things.

q2 do

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950