Refer to the histogram attached:1) Is mean or median a better measure of the centre of the “weights” variable in this dataset? Explain your reasoning. Weight Measurements for a Sample of 20 Low Birth Weight Infants51200140016004Sample32T0T6008001000Weight (g)

Solution The given histogram contains only the single mode .

Answered: 1) Is mean or median a better measure…

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

Refer to the histogram attached:

1) Is mean or median a better measure of the centre of the “weights” variable in this dataset? Explain your reasoning.

Weight Measurements for a Sample of 20 Low Birth Weight Infants
5
1200
1400
1600
4
Sample
3
2
T
0
T
600
800
1000
Weight (g)

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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