Stratified samples can better assure a representative sample than simple random samples. (True or false?)

Stratified samples can better assure a representative sample than simple random samples.
 
  Indicate whether the statement is true or false

---

(Question #2) Minute or nearly invisible evidence of a crime that would escape all but the most skilled investigators is known as evidence.
 
  What will be an ideal response?

---

(Question #3) Most early forms of classification were based primarily on:
 
  A. Superficial characteristics
  B. Race
  C. Type of offense
  D. Age

---

(Question #4) Simple random samples by no means guarantee probability samples.
 
  Indicate whether the statement is true or false

---

(Question #5) Validity means __________or truthfulness.
 
  Fill in the blank(s) with correct word