TEKS.MATH.9-12.VI.B.3

What is the mean?

• # happening the most
• the number in the middle
• biggest-smallest
• the average

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TEKS.MATH.9-12.VI.B.3

TEKS.MATH.9-12.IV.D.1

In order to find the median, the data must be sorted from least to greatest first.

• True
• False

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TEKS.MATH.9-12.VI.B.3

TEKS.MATH.9-12.IV.D.1

Find the Median of the data set

• 82
• 86
• 88
• 92

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TEKS.MATH.9-12.VI.B.3

TEKS.MATH.9-12.IV.D.1

Find the Mode of the data set

• 82
• 86
• 88
• 92

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TEKS.MATH.9-12.VI.B.3

TEKS.MATH.9-12.IV.D.1

The table below shows the lengths of fences a company installed during a week. 
Which statement is true?

• The 275-foot fence caused the mean to be significantly lower than the median.
• The 275-foot fence caused the median to be significantly lower than the mean.
• The 2,250-foot fence caused the mean to be significantly greater than the median.
• The 2,250-foot fence caused the median to be significantly greater than the mean.

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TEKS.MATH.9-12.VI.B.3

TEKS.MATH.9-12.IV.D.1

Find the median, mode and range: 
3, 5, 7, 9, 11, 8, 3

• median:7  mode:3  range:10
• median:6  mode:3  range:7
• median:7  mode:3 range:8

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TEKS.MATH.9-12.VI.B.3

TEKS.MATH.9-12.IV.D.1

The table below classifies 103 elements as metal, metalloid, or nonmetal and as solid, liquid, or gas at standard temperature and pressure.

What fraction of all solids and liquids in the table are metalloids?

• 7/92

• 2/30

• 1/2

• 0

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TEKS.MATH.9-12.VI.B.3

A biologist wants to estimate the difference between the mean body lengths of green and brown stinkbugs. A random sample of 20 green stinkbugs has a mean body length of 16.22 millimeters (mm) and a standard deviation of 1.34 mm. A random sample of 20 brown stinkbugs has a mean body length of 13.41 mm and a standard deviation of 0.73 mm. What is the standard error of the difference (green - brown) between the sample means?

• 
• 
• 
• 
• 

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TEKS.MATH.9-12.VI.B.3

The mean weight of a dog is 34 pounds with a standard deviation of 6.7 pounds. The mean weight of a cat is 12 pounds with a standard deviation of 3.1 pounds. If you have 2 dogs and 1 cat, what is the mean and standard deviation of their total weight?

• 80, 9.969

• 80, 16.5

• 46, 7.382

• 46, 16.5

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TEKS.MATH.9-12.VI.B.3

The mean amount of time to mix the batter for a cake is 14 minutes with a standard deviation of 2.5 minutes. The mean amount of time to bake the cake is 35 minutes with a standard deviation of 6.2 minutes. What is the mean time to make and bake a cake? What is the standard deviation?

• mean = 49 min sd = 8.7 min

• mean = 49 min sd = 6.685 min

• mean = 21 min sd = 8.7 min

• mean = 21 min sd = 6.685 min

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TEKS.MATH.9-12.VI.B.3

TEKS.MATH.9-12.IV.D.1