The 2006 GSS asked respondents how many siblings they have. The mean number of siblings was 3,76 ...

The 2006 GSS asked respondents how many siblings they have. The mean number of
  siblings was 3,76 with a standard deviation of 3,178 . What is the probability of a respondent having between 2 and 5 siblings?
 
  What will be an ideal response

---

The ____________ is important to identify the title, the authors, and characteristics of the
  manuscript; as well as representing the cover page and enhances the professional
  presentation.
 
  a. Title page
  b. Reference page
  c. Last page
  d. Pagination

---

The 2006 GSS asked respondents how many siblings they have. The mean number of
  siblings was 3,76 with a standard deviation of 3,178 .
 
  What is the probability of selecting either a respondent with 2 or fewer siblings, or a
  respondent with more than 5?
  What will be an ideal response