TEKS.MATH.9-12.IV.D

Which country eats the most chocolate (per person)?

• USA
• China
• Columbia
• Switzerland

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TEKS.MATH.9-12.IV.D

In the formula shown, what is in the denominator?

• Sample Mean
• Individual Score
• Sample Variance
• Sample Standard Deviation

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TEKS.MATH.9-12.IV.D

A set of observations that constitute PART of the population.

• Statistic
• Census
• Population
• Sample

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TEKS.MATH.9-12.IV.D

A numerical characteristic of the POPULATION

• Statistic
• Parameter
• Observation
• Study

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TEKS.MATH.9-12.IV.D

In a survey of a sample of high school students, 43% said that their mother has taught them the most about managing money.

• parameter
• statistic

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TEKS.MATH.9-12.IV.D

The shape of the data is skewed left.

• TRUE
• FALSE

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TEKS.MATH.9-12.IV.D

In a scatterplot r is called

• Coefficient of Determination
• Correlation coefficient
• Regression Line
• Slope

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TEKS.MATH.9-12.IV.D

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.IV.D

The stem-and-leaf diagram below gives the distribution of the ages in years of 20 participants at a family reunion. Which of the following statements about the distribution is correct?

• The first quartile is larger than the third quartile.
• The distribution is strongly skewed to the left.
• It makes the most sense to use the mean and standard deviation as a numerical summary of the center and spread of this distribution.
• The mean is larger than the median.

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TEKS.MATH.9-12.IV.D

According to the 1.5 x IQR rule, how many outliers are there in the data set 72, 110, 114, 115, 118, 123, 144, 156?

• None
• One
• Two
• Three

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TEKS.MATH.9-12.IV.D