In a study, the sample is chosen by asking people on the street what is the sampling method?

a. simple random
b. systematic
c. stratified
d. cluster
e. convenience

Option 'A' is correct.

Step-by-step explanation:

Since we have given that

the sample is chosen by asking people on the street.

Since every member chosen from the sample has an equal chance.

so, it is considered as simple random.

Systematic random is the method in which every n th member is selected or chosen.

Stratified random is the method of sampling in which population is divided into groups and the sample is making by choosing every member from each group

Cluster is the method of sampling in which the population is divided into groups and the sample is making by choosing every member from some of the group instead of every group.

But here, we have chosen by asking people on the street.

So, every member has equal chances.

So, it is sample random.

Hence, Option 'A' is correct.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square