- The population being all iPhone 4 users is True
- The 2% denote the sample statistic.
<h3>Sample statistic</h3>
This refers to the figures which are computed through the available data for
an item. Examples include:
The population being all iphone 4 user is true because it is the item that has
the data provided and is being talked
Read more about Sample statistic here brainly.com/question/16840464
The technique to improve internal validity is D) Addition of a control group.
<h3>What is
internal validity?</h3>
Internal validity serves as the study which bring about the establishment of a trustworthy cause-and-effect relationship that can be found in treatment and an outcome.
it should be noted that Internal validity also helps to eliminate alternative explanations , hence, The technique to improve internal validity is D) Addition of a control group.
Learn more about internal validity on:
brainly.com/question/968894
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COMPLETE QUESTOIN:
Which of the following is a technique to improve internal validity ____________?
A) Experimenter expectancy
B) Participant bias
C) Use of a confederate
D) Addition of a control group
B.true.they should. if they dont they should be fired
Answer:
That is called a "Connection Mnemonic."
Explanation:
I think it is the first answer choice " to explain why the Amazon Rainforest should be protected." Because that's what the passage is about. Someone explaining why the Rainforest should be protected and what will happen if it is destroyed.
