Answered: The weights of Gala apples are normally…

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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The weights of Gala apples are normally distributed with a mean of 218 grams and a standard deviation of 28 grams.

1)Determine the proportion of Gala apples weighing less than 172 grams. Round your answer to 4 decimal places -answer is 0.0502

2)The heaviest 20 percent of Gala apples weigh _____ grams or more. Round your answer to 1 decimal place -answer is 241.576

3)The middle 75 percent of Gala apples weigh between _____ and _____ grams. Round your answers to 1 decimal place.

4)Determine the proportion of Gala apples weighing between 160 and 246 grams. Round your answer to 4 decimal places.

5)Determine the proportion of Gala weighing more than 294 grams. Round your answer to 4 decimal places.

I need help with questions 3-5. Thank you!

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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