Chapter 1. Quantitative variables: Stemplots

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Questions 1-3

1:04

Question 1.1

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Incorrect. Typically, the leading digit in a number is plotted in the stems of a stemplot.
Correct. Typically, the leading digit in a number is plotted in the stems of a stemplot.
Incorrect. Try again.
2

Question 1.2

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Incorrect. "Six" is a ten and 2, 4, and 8 are ones.
Correct. "Six" is a ten and 2, 4, and 8 are ones.
Incorrect. Try again.
2

Question 1.3

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Incorrect. This is a correct statement.
Correct. This is a correct statement.
Incorrect. Try again.
2

Question 4

2:02

Question 1.4

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Incorrect. Observations in a data set can be displayed in two or three different stemplots.
Correct. Observations in a data set can be displayed in two or three different stemplots.
Incorrect. Try again.
2

Questions 5-7

3:22

Question 1.5

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Incorrect. For these data, the leading digit is the "hundreds" digit.
Correct. For these data, the leading digit is the "hundreds" digit.
Incorrect. Try again.
2

Question 1.6

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Incorrect. For these data, the second digit is the "tens" digit.
Correct. For these data, the second digit is the "tens" digit.
Incorrect. Try again.
2

Question 1.7

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Incorrect. This stemplot is single-peaked and trails out on the right, so its shape is right-skewed.
Correct. This stemplot is single-peaked and trails out on the right, so its shape is right-skewed.
Incorrect. Try again.
2

Question 8

3:48

Question 1.8

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Incorrect. Since every observation in a data set is plotted in both a dotplot and a stemplot, a histogram is best for large data sets.
Correct. Since every observation in a data set is plotted in both a dotplot and a stemplot, a histogram is best for large data sets.
Incorrect. Try again.
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