Answered: Twelve professional gamers were asked…

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter10: Inequalities

Section10.3: Solving Problems Involving Inequalities

Problem 2E

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Question

Twelve professional gamers were asked their age (in years) when they first began playing their game of choice. The data is collected below.

11, 12, 11, 13, 9, 15, 17, 21, 14, 11, 14, 18

Give the mode of this set.

A.) 11

B.) 14

C.) 13

D.) There is no mode.

Definition Definition Measure of central tendency that is the value that occurs most frequently in a data set. A data set may have more than one mode if multiple categories repeat an equal number of times. For example, in a data set with five item—3, 5, 5, 29, 473—the mode is 5 because it occurs twice and no other value occurs more than once. On a histogram or bar chart, the element with the highest bar represents the mode. Therefore, the mode is sometimes considered the most popular option. The mode is useful for nominal or categorical data (e.g., the most common color car that users purchase), but it is problematic for continuous data because it is more likely not to have any value that is more frequent than the other.

Expert Solution

Step 1

We make a table of frequencies

Data	frequency
9	1
11	3
12	1
13	1
14	2
15	1
17	1
18	1
21	1

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