Measures of Central Tendency Mean Median Mode Range Stem & Leaf Plots Scatter Plots Box & Whisker Plots
No relationship
Positive relationship
Negative relationship
Cannot be determined
No Relationship
Positive Relationship
Negative Relationship
Cannot be Determined
1000
864
100
90
71
600
76
60
21
92
85
20
Toby
Betty
Erica
No One
4
5
3
3.5
3
4
5
2
4
4.5
3
3.5
310
125
580
258
364
304
580
419
5
12
7
11
13
12
14
11
Both have the SAME range
Small Cars
Cannot tell
Sports Utility Vehicles
There is a NEGATIVE relationship between birth weight and month
There is a POSITIVE relationship between birth weight and month
There is NO relationship between birth weight and month
Babies born in April are on average heavier than those born in January
There is a strong POSITIVE relationship between temperature and time
As time increases, temperature decreases
As time increases, temperature increases
As time decreases, temperature decreases
55
47.5
46
49.5
19
42
61
25
As time increases, units produced increase
As time increases, units produced decrease
There is a strong NEGATIVE relationship between the temperature and time
There appears to be NO RELATIONSHIP between time and temperature
53
90
15
19
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