The data scientist categorized 437,521 comments as positive and 151,500 as negative. She found that 10,979 of the comments could not be categorized as either positive or negative, and she decided to define these as

“missing data.”

a. Find the mean for this variable, using the values assigned to the categories by the data scientist. Explain what the mean tells us about the comments on the video.

b. What is the mode for this variable?

c. Imagine that the data scientist decided to define the comments that could not be categorized as either positive or negative as “indeterminate” and assign the category a value of