A graphic that uses a dot to represent the frequency of each ...

[Beheh]

A graphic that uses a dot to represent the frequency of each score and connects those points with a straight line is called a
 
  a. histogram
  b. scattergram
  c. frequency polygon
  d. skewed distribution

Question 2

The bars of a frequency distribution should
 
  a. be touching each other (unless there is a category with zero frequency)
  b. be centered on the score value
  c. extend horizontally from the lower real limit of the score value to the upper real limit
  d. all of these are true

[janeli1]

Answer to Question 1

c

Answer to Question 2

d

[Beheh]

Wow, this really help

[juliaf]

Excellent