# Chapter 1. Interpreting Scatterplots

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Stat Tutor
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true

4:07

### Question 1.1

VzgRfUIED27dJNuj8Mnc/PEs60amQOHyU1bQE0ltq62pjNF2t64qLNxgzh4ASqvdq3M+HHrwxWCK9lnSpOD5oPOIThs=
Incorrect. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Correct. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Incorrect. Try again.
2

4:20

### Question 1.2

UJ2TJ+D9FKVm7LEmWv/AbDK5S21I0x+ZeVDn3LwzGXSSn8cT0GDWnyRRxel11JVnmlZAgQ==
Incorrect. Since a straight line can be drawn through the cloud of data, the form is linear.
Correct. Since a straight line can be drawn through the cloud of data, the form is linear.
Incorrect. Try again.
2

4:29

### Question 1.3

RBRkRH7Ff2kTnhpLUjfo4XJeKyhpeBcxUiXluRt63/AiM2nFXvbbTCKFvu9tn9KISXNuiw==
Incorrect. Since the linear pattern is clearly visible, the strength is strong.
Correct. Since the linear pattern is clearly visible, the strength is strong.
Incorrect. Try again.
2

5:30

### Question 1.4

VzgRfUIED27dJNuj8Mnc/PEs60amQOHyU1bQE0ltq62pjNF2t64qLNxgzh4ASqvdq3M+HHrwxWCK9lnSpOD5oPOIThs=
Incorrect. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Correct. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Incorrect. Try again.
2

5:33

### Question 1.5

UJ2TJ+D9FKVm7LEmWv/AbDK5S21I0x+ZeVDn3LwzGXSSn8cT0GDWnyRRxel11JVnmlZAgQ==
Incorrect. Since a straight line can be drawn through the cloud of data, the form is linear.
Correct. Since a straight line can be drawn through the cloud of data, the form is linear.
Incorrect. Try again.
2

5:37

### Question 1.6

NzTDBjatLFS0ittHO92RKVPjnbjaPIVB9F0/aUowLK3KsXd9pWQ8JIOu3K025MK317NixQ==
Incorrect. Since the linear pattern is clearly visible, the strength is strong.
Correct. Since the linear pattern is clearly visible, the strength is strong.
Incorrect. Try again.
2

6:49

### Question 1.7

Y2W7knftAbMdZS3qy6HmT3Copd31ClY/L0fcunxDCYuxv1QTfh5de33WyYAb6EjdxEKZOUr9Q/6Yrq6YFU0q31O4N2g=
Incorrect. Since a line drawn through the cloud of data will have negative slope, the direction is negative.
Correct. Since a line drawn through the cloud of data will have negative slope, the direction is negative.
Incorrect. Try again.
2

7:03

### Question 1.8

Incorrect. Since a straight line can be drawn through the cloud of data, the form is linear.
Correct. Since a straight line can be drawn through the cloud of data, the form is linear.
Incorrect. Try again.
2

7:25

### Question 1.9

RBRkRH7Ff2kTnhpLUjfo4XJeKyhpeBcxUiXluRt63/AiM2nFXvbbTCKFvu9tn9KISXNuiw==
Incorrect. Since the linear pattern is clearly visible, the strength is strong.
Correct. Since the linear pattern is clearly visible, the strength is strong.
Incorrect. Try again.
2

7:58

### Question 1.10

Incorrect. Since the cloud of data has no pattern, there is no relationship.
Correct. Since the cloud of data has no pattern, there is no relationship.
Incorrect. Try again.
2

8:29

### Question 1.11

f8BwqDv7Y6/0mSgXv6W/19JYyZUeKxx2fCYOT4xnE0sDEX6t3isSJhZEt38S3lWDYEqoCT7KBmJ/BMSM9lwGNyQBTruPGGq1Nc9YRw==
Incorrect. Since the cloud of data has a curved pattern, there is a relationship.
Correct. Since the cloud of data has a curved pattern, there is a relationship.
Incorrect. Try again.
2

8:38

### Question 1.12

VzgRfUIED27dJNuj8Mnc/PEs60amQOHyU1bQE0ltq62pjNF2t64qLNxgzh4ASqvdq3M+HHrwxWCK9lnSpOD5oPOIThs=
Incorrect. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Correct. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Incorrect. Try again.
2

8:42

### Question 1.13

KoqEDqOtWTRU1M4U4S/y6wH8EH7KFFwOWkodHotqH7SbAFTbbKpUThvfn9HMEehjk/5zHA==
Incorrect. Since a straight line drawn through the cloud of data does not follow the form, but a curved line drawn through the data does, the form is curved.
Correct. Since a straight line drawn through the cloud of data does not follow the form, but a curved line drawn through the data does, the form is curved.
Incorrect. Try again.
2

8:48

### Question 1.14

RBRkRH7Ff2kTnhpLUjfo4XJeKyhpeBcxUiXluRt63/AiM2nFXvbbTCKFvu9tn9KISXNuiw==
Incorrect. Since the curved pattern is clearly visible, the strength is strong.
Correct. Since the curved pattern is clearly visible, the strength is strong.
Incorrect. Try again.
2

9:25

### Question 1.15

vyqjdurMgyMUvAky6ZVZn31APK1SBdGvcxIy5eLMdPrA/iFjAujaShtxzf+GvUh2hOgmBb6wpLHQ2NrBVo5/+QvL/4zhKSqpxSex0MBchVBJwj6AtDBMyN0hJ3A=
Incorrect. Since the cloud of data seems to have a linear pattern, there is a relationship.
Correct. Since the cloud of data seems to have a linear pattern, there is a relationship.
Incorrect. Try again.
2

9:29

### Question 1.16

VzgRfUIED27dJNuj8Mnc/PEs60amQOHyU1bQE0ltq62pjNF2t64qLNxgzh4ASqvdq3M+HHrwxWCK9lnSpOD5oPOIThs=
Incorrect. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Correct. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Incorrect. Try again.
2

9:32

### Question 1.17

UJ2TJ+D9FKVm7LEmWv/AbDK5S21I0x+ZeVDn3LwzGXSSn8cT0GDWnyRRxel11JVnmlZAgQ==
Incorrect. Since a straight line can be drawn through the cloud of data, the form is linear.
Correct. Since a straight line can be drawn through the cloud of data, the form is linear.
Incorrect. Try again.
2

9:37

### Question 1.18

NzTDBjatLFS0ittHO92RKVPjnbjaPIVB9F0/aUowLK3KsXd9pWQ8JIOu3K025MK317NixQ==
Incorrect. Since the linear pattern is clearly visible, the strength is strong.
Correct. Since the linear pattern is clearly visible, the strength is strong.
Incorrect. Try again.
2

10:17

### Question 1.19

h+gDpqUZHcYH4Al9hiPqUN335VshVG14Emb1LWmkw5NVTLjXpKJAO/CwEb8Zd/jKLYZjxuqOXbbH3GBdIglGkU8wAvNpAw/XYs6rktN8ZYk27M1gmaTPGBa205spPxls
Incorrect. Since the cloud of data seems to have a linear pattern (with the exception of an outlier), there is a relationship.
Correct. Since the cloud of data seems to have a linear pattern (with the exception of an outlier), there is a relationship.
Incorrect. Try again.
2

10:22

### Question 1.20

Y2W7knftAbMdZS3qy6HmT3Copd31ClY/L0fcunxDCYuxv1QTfh5de33WyYAb6EjdxEKZOUr9Q/6Yrq6YFU0q31O4N2g=
Incorrect. Since a line drawn through the cloud of data will have negative slope, the direction is negative.
Correct. Since a line drawn through the cloud of data will have negative slope, the direction is negative.
Incorrect. Try again.
2

10:25

### Question 1.21

UJ2TJ+D9FKVm7LEmWv/AbDK5S21I0x+ZeVDn3LwzGXSSn8cT0GDWnyRRxel11JVnmlZAgQ==
Incorrect. Since a straight line can be drawn through the cloud of data, the form is linear.
Correct. Since a straight line can be drawn through the cloud of data, the form is linear.
Incorrect. Try again.
2

10:33

### Question 1.22

RBRkRH7Ff2kTnhpLUjfo4XJeKyhpeBcxUiXluRt63/AiM2nFXvbbTCKFvu9tn9KISXNuiw==
Incorrect. Since the linear pattern is clearly visible, the strength is strong.
Correct. Since the linear pattern is clearly visible, the strength is strong.
Incorrect. Try again.
2

11:06

### Question 1.23

sVqW1y5yFyOPjLRdna6zGEV1OHFbWwFcOasCpBT9igzmiXXPvaNdvu1iNy2fJANBnM4mCbD+3FnWKoRvbJKtJ1UcibWQzDmm
Incorrect. Since the cloud of data clearly has a linear pattern, there is a relationship.
Correct. Since the cloud of data clearly has a linear pattern, there is a relationship.
Incorrect. Try again.
2

11:14

### Question 1.24

VzgRfUIED27dJNuj8Mnc/PEs60amQOHyU1bQE0ltq62pjNF2t64qLNxgzh4ASqvdq3M+HHrwxWCK9lnSpOD5oPOIThs=
Incorrect. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Correct. Since a line drawn through the cloud of data will have positive slope, the direction is positive.
Incorrect. Try again.
2

11:25

### Question 1.25

UJ2TJ+D9FKVm7LEmWv/AbDK5S21I0x+ZeVDn3LwzGXSSn8cT0GDWnyRRxel11JVnmlZAgQ==
Incorrect. Since a straight line can be drawn through the cloud of data, the form is linear.
Correct. Since a straight line can be drawn through the cloud of data, the form is linear.
Incorrect. Try again.
2

11:41

### Question 1.26

RBRkRH7Ff2kTnhpLUjfo4XJeKyhpeBcxUiXluRt63/AiM2nFXvbbTCKFvu9tn9KISXNuiw==
Incorrect. Since the linear pattern is clearly visible, the strength is strong.
Correct. Since the linear pattern is clearly visible, the strength is strong.
Incorrect. Try again.
2

11:57

### Question 1.27

H19ogS9mHSYiAmDbK8x+BFLVHpWUqjLHUpfJnKh0VgPEYugJZK5bGlzRpB6VMwQpVGtrBqATrjRtM/9bJsfgKEJAyMp9eNvKfc20SSOEiD8Cd/k8J7YYPIelfa475v+ZwpQLc4EsV7m+csXDYDgA7JVVFjjrbin1
Incorrect. A .25 carat diamond is well within the range of observed x-values so we can predict its price.
Correct. A .25 carat diamond is well within the range of observed x-values so we can predict its price.
Incorrect. Try again.
2

12:13

### Question 1.28

ie4etxcJTPNtqnFyTX3MLVf+qQVdSeTvLGvPCRD3gMQsoVoCS/WtcUVoVz6wW5AWe0xYAeIciQcIlStwO/oC0GhlZA4earwFRpbLsokMu75VpDW7RjlbwEfv6zSzy2TP72CS1rg5TdBwuY05KZm5sZnwoTSZxDtO
Incorrect. A 2 carat diamond is quite a ways outside the range of observed x-values so predicting its price will give a bad prediction.
Correct. A 2 carat diamond is quite a ways outside the range of observed x-values so predicting its price will give a bad prediction.
Incorrect. Try again.
2

13:39