Education Level Of its age-appropriate residents, approximately 18.4% of the population in Blair county, Pennsylvania earned a bachelor’s degree or higher. What’s the probability of a randomly selected county being equal to or greater than 18.4%? Fluoride Levels A county in Kentucky has 6.7% of sampled homes above suggested fluoride levels. What’s the probability of a randomly selected county being equal or greater than 6.7%? Nitrate Levels A county in Hawaii has sampled home drinking water and found that 2.2% of their homes have nitrate levels above normal. What’s the probability of a randomly selected county being greater than or equal to 2.2%? Median Income Median income in Kent county, Delaware is $55,169. What’s the probability of a randomly selected county having greater than $55,169 median income? Percent Uninsured Dewey county, Oklahoma, has a 26% uninsured rate. What’s the probability of a randomly selected county having greater than 26% uninsurance rate? Median Age The median age of Pinellas county, Florida residents is 43 years. What is the probability of a randomly selected county having a median age equal to or greater than 43? Lead Levels A sample of children in every county in New York State was tested for lead levels above normal. In Steuben county, New York, 1.8% of children had lead levels above normal. What is the probability of 1.8% (or more) of children in a randomly selected county having lead levels above normal?

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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Education Level

Of its age-appropriate residents, approximately 18.4% of the population in Blair county, Pennsylvania earned a bachelor’s degree or higher. What’s the probability of a randomly selected county being equal to or greater than 18.4%?

Fluoride Levels

A county in Kentucky has 6.7% of sampled homes above suggested fluoride levels. What’s the probability of a randomly selected county being equal or greater than 6.7%?

Nitrate Levels

A county in Hawaii has sampled home drinking water and found that 2.2% of their homes have nitrate levels above normal. What’s the probability of a randomly selected county being greater than or equal to 2.2%?

Median Income

Median income in Kent county, Delaware is $55,169. What’s the probability of a randomly selected county having greater than $55,169 median income?

Percent Uninsured

Dewey county, Oklahoma, has a 26% uninsured rate. What’s the probability of a randomly selected county having greater than 26% uninsurance rate?

Median Age

The median age of Pinellas county, Florida residents is 43 years. What is the probability of a randomly selected county having a median age equal to or greater than 43?

Lead Levels

A sample of children in every county in New York State was tested for lead levels above normal. In Steuben county, New York, 1.8% of children had lead levels above normal. What is the probability of 1.8% (or more) of children in a randomly selected county having lead levels above normal?

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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