occurs in children is normally distributed with a mean of 10 years and a standard deviation of 1.5 years. What is the probability that when a randomly selected child has contracted the disease 4. Is between 8 and 12 years old 5. Be under 8 or over 12 years

occurs in children is normally distributed with a mean of 10 years and a standard deviation of 1.5 years. What is the probability that when a randomly selected child has contracted the disease 4. Is between 8 and 12 years old 5. Be under 8 or over 12 years

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

100%

The age at which a given disease occurs in children is normally distributed with a mean of 10 years and a standard deviation of 1.5 years. What is the probability that when a randomly selected child has contracted the disease

4. Is between 8 and 12 years old

5. Be under 8 or over 12 years of age

6. What is the value of a such that 30% of children get sick when they are less than a years old?

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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