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03-23 Calculating Error with Multiple Measurements

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    When we calculate error with multiple measurements, we're focused on precision.
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    Let's talk about what precision is. Let's say this is you.
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    You're a pretty tall person, you know you are about 2 m tall but you're really curious
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    about exactly how tall you are, so you ask your doctor, Doctor, how tall am I?"
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    She says, "Well, your height is 2.00 meters. You can trust me; I'm a doctor."
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    "Okay," you say, "Can you do that measurement again just so I can feel confident about the measurement?"
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    "Sure, no problem." She does the measurement again. She finds, "Well, you have a height of 1.20 meters.
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    "I did the measurement and I'm a doctor. You can trust me. "
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    You're a little confused so you say, "Well, why don't you make that
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    measurement again, I just want to be sure."
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    "Well, I did the measurement a third time like you asked, and I've found your height.
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    It is 2.80 meters.You could trust me. I am a doctor."
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    Now my question--do you trust your doctor?
Title:
03-23 Calculating Error with Multiple Measurements
Video Language:
English
Team:
Udacity
Project:
PH100 - Intro to Physics
Duration:
0:49
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