Answer is D 4. The midterm scores of three sections (A01, A02 and A03) of a course are recorded. The side-by-side (quantile) boxplots are shown below, as well as a numerical summary by section: All All (A) II only (B) I and II only (C) I and III only (D) II and III only (E) I, II and III min Q1 med Q3 max mean A01 125 10 67 A02 200 19 46 A03 175 34 49 54 71 100 58.8 std. dev. 17.3 135 11.9 Which of the following statements is/are true? (1) The distributions of scores for Section A01 is skewed to the right. (II) About 50 students in Section A02 received a score higher than 71. (III) If we constructed outlier boxplots, we would see that there is at least one outlier in Section A03.

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Answer is D
4. The midterm scores of three sections (A01, A02 and A03) of a course are recorded. The
side-by-side (quantile) boxplots are shown below, as well as a numerical summary by section:
555
Section
A01
(A) II only
(B) I and II only
(C) I and III only
(D) II and III only
(E) I, II and III
=
All
min Q1 med Q3 max mean
10 48 67
80
71
A02 200 19 46
A03 175 34
100 58.8
95
std. dev.
17.3
13.5
11.9
Which of the following statements is/are true?
(I) The distributions of scores for Section A01 is skewed to the right.
(II) About 50 students in Section A02 received a score higher than 71.
(III) If we constructed outlier boxplots, we would see that there is at least one outlier in Section
A03.
Transcribed Image Text:Answer is D 4. The midterm scores of three sections (A01, A02 and A03) of a course are recorded. The side-by-side (quantile) boxplots are shown below, as well as a numerical summary by section: 555 Section A01 (A) II only (B) I and II only (C) I and III only (D) II and III only (E) I, II and III = All min Q1 med Q3 max mean 10 48 67 80 71 A02 200 19 46 A03 175 34 100 58.8 95 std. dev. 17.3 13.5 11.9 Which of the following statements is/are true? (I) The distributions of scores for Section A01 is skewed to the right. (II) About 50 students in Section A02 received a score higher than 71. (III) If we constructed outlier boxplots, we would see that there is at least one outlier in Section A03.
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