Eoc Fsa Practice Test - Algebra 1, Florida Department Of Education Page 15
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21Name: ________________________
ID: A
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____
The number of calls received by a technical support center during 18 randomly selected days is listed.
Identify the outlier, and describe how it affects the mean and the standard deviation.
50
57
77
66
53
72
51
88
82
70
62
64
69
88
98
65
14
68
The outlier is 88. The outlier in the data set causes the mean to decrease from about
A
18.6 to about 13.7 and the standard deviation to increase from about 66.3 to about
69.4.
The outlier is 88. The outlier in the data set causes the mean to increase from about
B
66.3 to about 69.4 and the standard deviation to decrease from about 18.6 to about
13.7.
The outlier is 14. The outlier in the data set causes the mean to decrease from about
C
69.4 to about 66.3 and the standard deviation to increase from about 13.7 to about
18.6.
The outlier is 14. The outlier in the data set causes the mean to decrease from about
D
18.6 to about 13.7 and the standard deviation to increase from about 66.3 to about
69.4.
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Scott records the number of people waiting at a bus stop throughout the afternoon and evening, as
shown in the scatterplot
Click a number or numbers to show the y-intercept for the line of best fit.
To help solve the problem use the graph to draw the line of best fit.
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