Statistics Chapter

Which graph is skewed right?

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• 
• 

Which is an example of quantitative data?

• Zip code

• Height

• Age groups

• Gender

What is the mean and median of this data set? Data set: 1, 4, 5, 2, 3, 6, 7, 3, 2, 1

• Mean: 4 Median: 3

• Mean: 2.7 Median: 4

• Mean: 3.4 Median: 3

• Mean: 3.7 Median: 3.5

How do you find range?

• Median

• Max - min

• Q3 - Q1

• 1.5 x IQR

How are outlier identified?

• 2(IQR)

• Q3 - Q1

• IQR

• 1.5 X IQR

In SOCS, what is also known as the "unusual factor?"

• Shape

• Center

• Spread

• Outlier

Calculate the percentage of those who prefer pizza for lunch.

• 43.5%

• 34.1%

• 31.7%

• 39.8%

A set of data has Q3 = 6, IQR = 2. Are there any outliers? Would 10 be an outlier in this data?

• Yes, because 10 > 1.5(IQR) + Q3

• No, because 10 > 1.5(IQR) + Q3

• Yes, because 10 < Q1 - 1.5(IQR)

• No, because 10 < Q1 - 1.5(IQR)

The standard deviation is the ____________ of the __________.

• Square root, variance

• Variance, mean

• Mean, variance

• Square, variance

Based on the table below, what percentage of 38-47 year olds own convertibles?

• 15.2%

• 34.2%

• 16.8%

• 50.6%