Mr. stratford is the president of a national organization of lesbian, bisexual, gay, and transgender people in the united states. he wants to survey 1,000 members of his organization about the position they want the organization to take on several political issues. he knows that transgender people make up only 5 percent of his organization, but he wants to make sure that their views are accurately represented. he decides that he will randomly sample 100 transgender members and then adjust the final results so that transgender people are weighted to their actual proportion in the organization. is mr. stratford collecting a representative sample?
1. no, because straight people are not included in the sample.2. yes, because the transgender people in the final sample were sampled randomly from the population of transgender people in the organization.3. no, because the transgender people are over-represented in the final sample.4. yes, because 1,000 people is enough to make a representative sample.

2. Yes, because the transgender people in the final sample were sampled randomly from the population of transgender people in the organization.

Explanation:

Representative sample:

A representative sample is a group that closely matches the characteristics of its population as a whole.

There are some occasions where it is necessary to collect data from each member of the population because the opinion of greater number of people is more important and accurate than a single one. But we cannot survey the whole organization. So what Mr. Stratford did is that he took a sample to accurately obtain the views of transgender members and then mapped the results to the actual proportion of transgenders in the organization.

A representative sample allows the collected information to be abstracted to a greater population. A representative sample is a small number of people that reflect, as accurately as possible, a larger group. Hence, what Mr.Stratford is collecting is a representative sample.

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia