STAT 324 Week 2 Quiz

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Week 2 Quiz

Questions

Question 1 Oxide Thickness (Notes 2)

(a) Median code

(b) Upper whisker

Question 2 Statements About Summaries

(a) The range will always be positive (> 0).

(b) The standard deviation will always be nonnegative (≥ 0).

(d) The median is always equal to the mean.

Question 3 Tree-Volume Boxplots

(a) Middle 50%

(b) Cherry range

(d) Cherry mean

Question 4 Matching Histograms and Boxplots

Question 5 Left-Skewed Exam Scores

(a) Clustering

(b) Quartile distances

Question 6 Comparing Histograms

(a) Which histogram has a high mean and a low standard deviation?

(b) Which histogram has a low mean and a high standard deviation?

Question 7 Screen Tension (Notes 3)

(a) At most 300

(b) At most 260 or at most 300

Repeated Week 1 Material

Variable Types

(a) Height

(b) Name

(d) Wrist circumference

(e) Number of siblings

(f) Class standing according to credits

Choosing R Code

Histogram Breaks

Study Type

(a) Headache treatments

(b) Handedness and gripping strength

Data Type

(a) Type of coffee drink purchased by the first 150 customers at a coffee shop

(b) Transaction bill paid by the first 150 customers at a coffee shop

Course Help

Syllabus Questions

(a) Exam arrangements

(b) Exam weights

Piazza