Which of the code lines listed below was used to create this table?

Consider the following descriptive statistics on a large sample of north American chocolate bars:

Now consider the graph below. 

Your employer, Mars Inc., is planning to launch a new premium chocolate bar. Choosing the right supplier of cocoa beans will be critical.  The plot below represents the distribution of the ratings of chocolate bars sourced from the top 5 largest cocoa bean producers. 

Based on this information, what source would you choose? Carefully explain why, supporting your arguments with numerical measures.

Consider the following descriptive statistics on a large sample of north American chocolate bars:

Which of the plots below is a correct depiction of the variable "cocoa_percent"?

Consider the following research summary:

"To test the widespread idea that chocolate is harmful in instances of acne vulgaris, five normal subjects ingested two enriched chocolate bars daily for one month; this represented a daily addition of the diet of 1,200 calories, of which about half was vegetable fat. Measurements of the subject's output of facial sebum before and after this period indicated no effect caused by the additional chocolate intake."

a) What is the treatment? What are the treatment and control groups?

b) What are the explanatory and response variables?

c) Discuss one possible limitation of this study. 

Consider the histogram depicted below:

Which boxplot depicts the same data as the histogram?

A random experiment gave rise to the two-way contingency table shown. 

Events L and R are:

Which of the following is a characteristic of the median?