Answered: The percentage (rounded to the nearest…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The percentage (rounded to the nearest whole percent) of persons from each state completing 4 years or more of college is listed below. Organize the data into a grouped frequency distribution
with 5 classes. The data for this exercise will be used for Exercises 7, 9, and 11.

Percentage of persons completing 4 years of college

23        25       24       34       22       24       27       37       33       24
26        23       38       24       24       17       28       23       30       25
30        22       33       24       28       36       24       19       25       31
34        31       27       24       29       28       21       25       26       15
26        22       27       21       25       28       24       21       25       26

Source: New York Times Almanac

Find the relative frequency for the frequency distribution for the data.
Construct a histogram, frequency polygon,
Construct Relative Ogive for the data.
Find the Mean and Mode for the above data. (Grouped)

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.

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