Forrester Research has carried out an evaluation of European online retailers by asking consumers how well the Web sites helped them achieve their goals. Forrester only surveyed a , a small portion of the people that represent consumers who shop online.

Forrester only surveyed a sample, a small portion of the people that represent consumers who shop online.

Explanation:

To collect data from the people through survey. Forrester research chooses a small portion of people to represent the online shopping customers. The small portion of people chosen is called the sample. As the entire people cannot be surveyed because it is complicated and time consuming.

Statistically sample is defined as the subset of the population of interest. Survey is collecting data and opinions from the people. This survey with subset of population is called as sample survey.

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.

answer; charters;