AL Geo - Standard Deviation Review

Compare the centers and variation.

• Math has a higher median (center) and more variation.

• Math has a higher median (center) and less variation.

• Math has a lower median (center) and less variation.

• Math has a lower median (center) and more variation.

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

From the boxplots it can be concluded that the diameters of the jellyfish taken from location A are generally

• Similar to the diameters taken from location B

• Less than the diameters taken from B and less variable

• Less than the diameters taken from B and more variable

• Greater than the diameters taken from B and less variable

• Greater than the diameters taken from B and more variable

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1
• 2
• 3
• 4

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Four data sets are shown below.
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest standard deviation?

• Set 1
• Set 2
• Set 3
• Set 4

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the standard deviation for the data given:
{12, 13, 29, 18, 61, 35, 21}

• 293.67
• 15.87
• 17.14
• 41.98

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the standard deviation for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 6.89

• 10.1

• 7.26

• 9

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

To find the _________ you add up all the numbers and then divide by how many numbers you have.

• Mean
• Median
• Mode
• Range

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CCSS.4.MD.B.4

If the standard deviation of a data set is 4, what is the variance?

• 2
• 16
• 4

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CCSS.6.SP.A.3

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the sample standard deviation of Ervin's scores?

• 511.33

• 22.61

• 438.48

• 20.94

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CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Given a variance of 64, what is the standard deviation?

• 8

• 4096

• 0

• 6.8

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CCSS.8.EE.A.2