What type of error is caused by the improper administration or execution of the research task? bias error administrative error sampling error structural error?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

Write a similarity statement for the similar triangles. afgh ~ a