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Author Question: Does regular exercise decrease the risk of cancer? A researcher finds 200 women over 50 who exercise ... (Read 276 times)

hbsimmons88

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on: Jul 24, 2018
Does regular exercise decrease the risk of cancer? A researcher finds 200 women over 50 who exercise regularly, pairs each with a woman who has a similar medical history but does not exercise, then follows subjects for 10 years to see which group
 
  develops more cancer. This is a
  A) survey
  B) prospective study
  C) randomized experiment
  D) retrospective study
  E) matched experiment

Question 2

Which is true about sampling?
 
  I. An attempt to take a census will always result in less bias than sampling.
  II. Sampling error is usually reduced when the sample size is larger.
  III. Sampling error is the result of random variations and is always present.
  A) II and III B) I only C) I, II, and III D) II only E) III only
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vboyd24

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Reply #1 on: Jul 24, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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hbsimmons88

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Reply 2 on: Jul 24, 2018
Gracias!

jackie

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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