M1 S1 Quiz Using Graphs to Describe a Dataset
Due
Jun 20 at 11:59pm
Points
4
Questions
4
Time Limit
None
Allowed Attempts
3
Attempt History
Attempt
Time
Score
LATEST
Attempt 1
8 minutes
4 out of 4
Correct answers are hidden.
Score for this attempt: 4
out of 4
Submitted Jun 20 at 6:03pm
This attempt took 8 minutes.
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1 / 1 pts
Question 1
What is the R command for making a histogram of your data?
hist() stripchart() histogram() plot() 1 / 1 pts
Question 2
Which of the following is not one of the warnings listed about using histograms to understand a set of numbers?
When interpreting a histogram, it's important to keep in mind that different peaks might include different subsets of individuals Histograms can be misleading if you have too many data points Changing the range on the Y axis can misleadingly emphasize the differences in the histogram peaks Changing the bin sizes of a histogram can dramatically change the appearance of the graph 1 / 1 pts
Question 3
What is the point of adding "jitter" to a stripchart?
It tells the software to randomly pick different symbols for each data point. It causes the points to move around making the graph more interesting in videos It reflects the uncertainty in the measurements of the original data. It helps minimize the exact overlap in data points 1 / 1 pts
Question 4
Which of the following is not information that a histrogram is helpful in presenting?
The over all "shape" of the data, e.g. "bell curve" or "even distribution", etc. Outliners in the data set, i.e. points separate from the rest of the points The most commonly occurring values or range of values in the data set. How one set of values varies with another set of values. Quiz Score: 4
out of 4
