Answered: The median incomes of females in a…

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 median incomes of females in a random sample of 30 states of the United States, including the District of Columbia and Puerto Rico, are given in the table below ('Median income of,' 2013). Create a frequency distribution and a relative frequency distribution using 7 classes.

a) Since data were collected for variable(s), the correct graph to make is a .

b) Using the formula class width = (maxX - minX)/(number of classes) and rounding up to the next whole number, the class width is

Complete the frequency/relative frequency table using 7 classes.

Round relative frequencies to 3 decimal places.

c) Which of the following is the correct histogram for the given data?

(If using a screenreader and you cannot see the options, use "message instructor" and include a copy of your histogram for hand grading.)

b) Using the formula class width = (maxX - minX)/(number of classes) and rounding up to the next whole
number, the class width is
Complete the frequency/relative frequency table using 7 classes.
Round relative frequencies to 3 decimal places.
Classes
22116.5-
O
c) Which of the following is the correct histogram for the given data?
(If using a screenreader and you cannot see the options, use "message instructor" and include a copy of
your histogram for hand grading.)
Frequency
Frequency
190000
rbasompacaben ben 38409 00 Osebepcembenden bezBEZDOCHOTIONS
Relative Frequency
Histogram for Median Income of Females

The median incomes of females in a random sample of 30 states of the United States, including the District
of Columbia and Puerto Rico, are given in the table below ('Median income of, 2013). Create a frequency
distribution and a relative frequency distribution using 7 classes.
41412
29548
40416
35301
33184
37089
42113
31862
47155
31238
31329
35746
31274
33865
38177
22117
35438
33269
36048
41021
33745
40993
32316
34599
39150
37242
34381
34023
31844
41817
a) Since data were collected for ? ✓ Select an answer variable(s), the correct graph to make is a
Select an answer

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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