3 Data gathering and processing
3.8 Answers

Table of contents

Text begins

Topic navigation
  1.  
    1. The total student population of the Poplar Ridge Academy is 950.
    2. A sample of 50% of the school’s student population would equal 475 students.
    3. The number of male preschool students to be included in a sample of 475 is 4 or 5.
      9/950 x 475 = 4.5
    4. The sampling method used here is stratified sampling.
    5. The following table features the breakdown of the 180 member sample so that it is proportionate to gender by grade level. 
      Table 3.8.1
      Number of students by gender and grade level needed to make a sample of 180 students, Poplar Ridge Academy
      Table summary
      This table displays the results of Number of students by gender and grade level needed to make a sample of 180 students Preschool, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 (appearing as column headers).
      Preschool 1 2 3 4 5 6 7 8 9 10 11 12
      Boys 2 2 2 2 2 4 4 5 15 14 13 13 11
      Girls 1 2 2 2 2 3 7 6 12 12 12 17 13
      Total 3 4 4 4 4 7 11 11 27 26 25 30 24
    Return to question 1
  2. The correct order for these items is
    • data
    • collection
    • processing
    • information
    Return to question 2
  3. Unedited data may contain errors or miscalculations, thereby causing the information to be wrong or incomplete. This inaccurate information requires editing before being released to the public.
    Return to question 3


Table of contents

Date modified: