Answered: The data show the population in (…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

The data show the population in ( thousands )for the recent year of a simple of cities in South Carolina.
29 26 15 13 17 57
14 25 37 19 40 67
23 10 97 12 129
27 20 18 120 35
66 21 11 43 22
Determine a) Mean; Median; Midrange; Range; Standard Deviation b) ?1; ?3; ??? c) The 45th Percentile; The percentile rank of 67 d) Are there any outliers in the data? e) Is the minimum value in the data unusually low? f) Is the maximum value in the data unusually high?

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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