As part of a statistics project, Charlie would like to collect data on household size in his city. To do so, he asks each person in his statistics class for the size of their household and reports the results of a simple random sample. However, this is not a simple random sample. Why

The reason is Charlie chooses the sample which does not requires hard work to extract useful data and other factors were not considered like babies are always part of household size.

Explanation:

The approach was to just completing the task not completing the task with the level of research which it requires. The sample chosen was very small and was not representative of the population. The reason is that the students in the stats class might be from same housing society where millionaires reside. So the sample is inappropriate here because the way a rich people spend his life is different from the labors, etc. So the household matters on the financial status of person, culture, etc. The sample chosen a very small share which was not a random selection.

Secondly, Charlie must consider the age of person that the person is financially responsible to take care of. Because babies are always in the household size and that this information was also not considered necessary by Charlie to extract.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.