Question

answer the questions below.
(a) the 9 members of a fraternity have the following test scores: 66, 118, 119, 120, 121, 122, 125, 127, 128. which measure should be used to summarize the data?
○ mean
○ median
○ mode
(b) elsa has recorded the number of miles she has driven for each of the last 10 weeks: 388, 391, 397, 404, 405, 409, 412, 413, 417, 419. which measure should be used to summarize the data?
○ mean
○ median
○ mode
(c) the readers of a children’s magazine are asked to name their favorite animals. which measure indicates the animal chosen most often?
○ mean
○ median
○ mode

Explanation:

Step1: Analyze part (a) data

Data: 66, 118, 119, 120, 121, 122, 125, 127, 128. There is an outlier (66) that skews the data. Median is robust to outliers.

Step2: Analyze part (b) data

Data: 388, 391, 397, 404, 405, 409, 412, 413, 417, 419. Data is symmetric, no outliers. Mean represents central tendency well.

Step3: Analyze part (c) question

The question asks for the most frequently chosen animal. Mode is the measure of most frequent value.

Answer:

(a) Median
(b) Mean
(c) Mode