Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to site content Skip directly to page options
CDC Home
Contact Us:
  • Division of Scientific Education and Professional Development
    1600 Clifton Rd
    Mailstop E-92
    Atlanta, GA 30333
    Contact DSEPD
  • 800-CDC-INFO
    TTY: (888) 232-6348
  • Contact CDC–INFO

Lesson 2: Summarizing Data

Section 5: Methods for Summarizing Data


Knowing the type of variable helps you decide how to summarize the data. Table 2.7 displays the ways in which different variables might be summarized.

Table 2.7 Methods for Summarizing Different Types of Variables

Scale Ratio or Proportion Measure of
Central Location
Measure of Spread
no no
no no
yes, but might need to group first
yes yes
yes, but might need to group first
yes yes

Measure of central location: a single, usually central, value that best represents an entire distribution of data. The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Road Atlanta, GA 30329-4027, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO
A-Z Index
  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. #