1. Regarding the following image with error bars as Standard Deviations:

(Source: https://pythonforundergradengineers.com/python-matplotlib-error-bars.html Links to an external site.)

Is it OK to plot standard error as the error bars instead?

a. No, standard error allows too much room for flexibility and gives researchers an unfair advantage.

b. No, standard error is an inferential statistics (hypothesis testing) concept and should not be used to describe/summarize your original data.

c. Yes, standard error is the same as standard deviation

d. Yes, standard error is another way to represent fluctuations

2. To visualize the correlation between two variables, which of the following charts should be used?

a. Histogram

b. Heat map

c. Scatter plot

d. Box plot

e. Bar plot

f. Dendrogram

3. Regarding question 2 : For the two variables in question, one of them can be discrete (categorical) and another can be continuous.

Group of answer choices

True

False