Mathematics
Grade 9
15 min
Identify an outlier and describe the effect of removing it
Identify an outlier and describe the effect of removing it
Tutorial Preview
1
How does an outlier affect the mean? Consider the set {4, 6, 7, 9, 34}.
2
How does an outlier affect the median? Consider the set {10, 12, 15, 18, 95}.
3
How does an outlier affect the range? Consider the set {21, 24, 25, 30, 60}.
Sample Practice Questions
Easy
Which number is the outlier in the set {5, 8, 9, 12, 56}?
0.8
1.12
2.56
3.5
Easy
Which number is the outlier in the set {3, 45, 48, 50, 52}?
0.3
1.45
2.50
3.52
Easy
Removing the outlier from {10, 11, 14, 15, 80} will do what to the mean?
0.Increase it
1.Decrease it
2.No change
3.Double it
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Identify an outlier and describe the effect of removing it is a Grade 9 Mathematics lesson on ExcelOS.
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Identify an outlier and describe the effect of removing it
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This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.