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A survey of 1,250 adults in the US was conducted to determine the quality of customer service at bank of america. Frequency Distribution of Responses

A survey of 1,250 adults in the US was conducted to determine the quality of customer service at bank of america.

Frequency Distribution of Responses Excellent 462 Pretty Good 288 Only Fair 225 Poor 225 Not Sure 50 a. What type of response variable is of interest? b. What graph is appropriate to summarize the distribution of this variable? c. What proportion of sampled adults rated the quality of customer service as excellent? What is the name of the statistic you just calculated?

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