Chapter 1. What is Statistics?

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Stat Tutor
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Question 1

1:23

Question 1.1

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Incorrect. Applying the scientific method allows us to confirm a theory through experimentation and analysis.
Correct. Applying the scientific method allows us to confirm a theory through experimentation and analysis.
Incorrect. Try again.
2

Question 2

2:21

Question 1.2

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Incorrect. Taking a survey will find out peoples’ opinions, but not ascertain truth.
Correct. Taking a survey will find out peoples’ opinions, but not ascertain truth.
Incorrect. Try again.
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Questions 3-5

4:48

Question 1.3

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Incorrect. No theory can be confirmed with absolute certainty due to variation.
Correct. No theory can be confirmed with absolute certainty due to variation.
Incorrect. Try again.
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Question 1.4

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Incorrect. Variation is omnipresent.
Correct. Variation is omnipresent.
Incorrect. Try again.
2

Question 1.5

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Incorrect. Some experiments cannot be reproduced.
Correct. Some experiments cannot be reproduced.
Incorrect. Try again.
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Questions 6-7

5:49

Question 1.6

NchDvAOQs5tKCXbiLqr3O74CEyWHoXK3sJGwB2LNqQmhLVjWlYljS1rlEpVDLmqZi13ByB4Dco+HUzvW+TApk1R7yO/q1qrlhCXwamuk3yeL933OuPCCHA9HD3HebWDyLEIOvYgaW5fDMx9wFxoLNUZjAClbmxNQVcBBYg37HeLlXdiLuazd3Ry0jbSUtfpyoBHTyhmPjdlok8tpQi5iGiXTe/ZSEZCZOCi8ljBXB/K2zzkrNv0sXA==
Incorrect. All of these are sources of variation.
Correct. All of these are sources of variation.
Incorrect. Try again.
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Question 1.7

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Incorrect. No measuring instrument is completely accurate.
Correct. No measuring instrument is completely accurate.
Incorrect. Try again.
2

Question 8

6:29

Question 1.8

JeMAL5ELJ7s31Qf9XfxzAznf0KonnOz/KWL22VUqfyGiloE32UTXC5nsWaRG4M0PZaj8FJEUf1SwzHMo5NgRxpBXElmVFPaMs3moFQqaZxlyBNdcck6ojTFLesCAaqvPC7JEpM3bFeN/c1veTVD2O2TJci/f3gYYL9iEb8m0j4oAISembvGCB8CMXVhdvk7c8VK0RH0V7JljFo5Cuz/1Nop4MSt3nc6B85N2a4/Vnl7heEGJhi/8FlOwdFKx9g/8dfbEg+5uRO9LX5Yr/dSkeFChy8Q=
Incorrect. Some species of peppers are hotter than others.
Correct. Some species of peppers are hotter than others.
Incorrect. Try again.
2

Question 9

6:56

Question 1.9

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Incorrect. Just because people look the same does not mean that they think the same.
Correct. Just because people look the same does not mean that they think the same.
Incorrect. Try again.
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Questions 10-11

7:24

Question 1.10

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Incorrect. This is a correct statement because of variation.
Correct. This is a correct statement because of variation.
Incorrect. Try again.
2

Question 1.11

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Incorrect. This is a correct statement.
Correct. This is a correct statement.
Incorrect. Try again.
2

Question 12

7:45

Question 1.12

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Incorrect. In statistics, we collect data, summarize data and draw conclusions from data—all part of the scientific method. We do not necessarily search the internet.
Correct. In statistics, we collect data, summarize data and draw conclusions from data—all part of the scientific method. We do not necessarily search the internet.
Incorrect. Try again.
2

Question 13

8:27

Question 1.13

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Incorrect. Because of variation, conclusions are made with probability and stated reflecting our uncertainty.
Correct. Because of variation, conclusions are made with probability and stated reflecting our uncertainty.
Incorrect. Try again.
2

Questions 14-16

9:46

Question 1.14

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Incorrect. This is a correct statement.
Correct. This is a correct statement.
Incorrect. Try again.
2

Question 1.15

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Incorrect. This is a correct statement.
Correct. This is a correct statement.
Incorrect. Try again.
2

Question 1.16

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Incorrect. Other variables may affect the relationship between two variables.
Correct. Other variables may affect the relationship between two variables.
Incorrect. Try again.
2

Question 17

10:48

Question 1.17

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Incorrect. This is a correct statement.
Correct. This is a correct statement.
Incorrect. Try again.
2

Questions 18-20

11:43

Question 1.18

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Incorrect. This is a correct statement.
Correct. This is a correct statement.
Incorrect. Try again.
2

Question 1.19

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Incorrect. This is a correct statement.
Correct. This is a correct statement.
Incorrect. Try again.
2

Question 1.20

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Incorrect. Everything in statistics is done acknowledging the presence of variation.
Correct. Everything in statistics is done acknowledging the presence of variation.
Incorrect. Try again.
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