« previous next »

Author Question: The key to using stratified sampling is: a. identifying the strata b. selecting the appropriate ... (Read 137 times)

plus1

  • Hero Member
  • *****
  • Posts: 676
on: Jun 24, 2018
The key to using stratified sampling is:
 a. identifying the strata b. selecting the appropriate strata
  c. defining the strata d. randomizing the strata

Question 2

Examples of non-random patterns that may be evident on a time series graph include:
 a. trends
  b. increasing variance over time
  c. a meandering pattern
  d. too many zigzags
  e. all of these choices


juliaf

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

e


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

plus1

  • Hero Member
  • *****
  • Posts: 676
Reply #2 on: Jun 24, 2018
Thank you


juliaf

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jun 24, 2018
No problemo


« previous next »
 

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Chorionic villus sampling (left) and amniocentesis (right) Chorionic villus sampling (left) and amniocentesis (right)
The chorionic villus sampling technique. (a) A catheter is inserted into the uterus through the vagi The chorionic villus sampling technique. (a) A catheter is inserted into the uterus through the vagi
A Haddon Matrix Identifying Preventive Elements for Motor Vehicle Collisions A Haddon Matrix Identifying Preventive Elements for Motor Vehicle Collisions
Selecting Mice Selecting Mice
Frederick Griffith’s experiment identifying a ″transformation factor″ responsible for heredity Frederick Griffith’s experiment identifying a ″transformation factor″ responsible for heredity
Identifying recessive mutations in Drosophila using a balancer chromosome Identifying recessive mutations in Drosophila using a balancer chromosome
Video: Hypoglycemia Animation

For a complete list of videos, visit our video library