Answered: Newborn Elephant Weights Newborn…

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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Newborn Elephant Weights Newborn elephant calves usually weigh between 200 and 250 pounds—until October 2006 , when an Asian elephant at the Houston (Texas) Zoo gave birth to a male calf weighing in at a whopping 384 pounds! Mack (like the truck) is believed to be the heaviest elephant calf ever born at a facility accredited by the Association of Zoos and Aquariums. If, indeed, the mean weight for newborn elephant calves is 243 pounds with a standard deviation of 46 pounds, what is the probability of a newborn weighing at least 384 pounds? Assume that weights of newborn elephants are normally distributed. Round z -value calculations to 2 decimal places and final answer to at least 4

decimal places.

The probability that a newborn elephant weighs at least

384

pounds is

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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