What number is missing from the table? Grades on Test Frequency Relative Frequency A 6 .24 B ...

What number is missing from the table?
 
  Grades
  on Test Frequency
  Relative
  Frequency
  A 6 .24
  B 7
  C 9 .36
  D 2 .08
  F 1 .04
  A) .07 B) .28 C) .70 D) .72

Q. 2

A sample of 100 e-mail users were asked whether their primary e -mail account was a
  free account, an institutional (school or work) account, or an account that they pay for
  personally. Identify the classes for the resulting data.
 
  What will be an ideal response?

Q. 3

What class percentage corresponds to a class relative frequency of .37?
 
  A) .37 B) 63 C) 37 D) .63

Q. 4

A number between 1 and 10, inclusive, is randomly chosen. Events A and B are defined as
  follows.
 
  A: The number is even
  B: The number is less than 7
  Identify the sample points in the event A  B.
  A) 1, 2, 3, 4, 5, 6, 7, 9 B) 2, 4, 6
  C) 1, 2, 3, 4, 5, 6, 7, 8, 10 D) 1, 2, 3, 4, 5, 6, 8, 10

Q. 5

In an eye color study, 25 out of 50 people in the sample had brown eyes. In this situation, what
  does the number .50 represent?
 
  A) a class B) a class percentage
  C) a class frequency D) a class relative frequency

Q. 6

The way in which an interviewer asks a question about political party affiliation causes
  respondents to answer that they have no affiliation when they actually do. What type of
  problem has occurred?
 
  A) nonresponse bias B) measurement error C) selection bias