On average, indoor cats live to 15 years old with a standard deviation of 2.2 years. Suppose that the distribution is normal. Let X = the age at death of a randomly selected indoor cat. Round answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N( 15 10 b. Find the probability that an indoor cat dies when it is between 13.7 and 17.5 years old. 0.5953 c. The middle 30% of indoor cats' age of death lies between what two numbers? Low: 14.1420 x years High: 15.8580 X years

On average, indoor cats live to 15 years old with a standard deviation of 2.2 years. Suppose that the distribution is normal. Let X = the age at death of a randomly selected indoor cat. Round answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N( 15 10 b. Find the probability that an indoor cat dies when it is between 13.7 and 17.5 years old. 0.5953 c. The middle 30% of indoor cats' age of death lies between what two numbers? Low: 14.1420 x years High: 15.8580 X 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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

On average, indoor cats live to 15 years old with a standard deviation of 2.2 years. Suppose that the
distribution is normal. Let X = the age at death of a randomly selected indoor cat. Round answers to
4 decimal places where possible.
a. What is the distribution of X? X - N( 15
x)
10
b. Find the probability that an indoor cat dies when it is between 13.7 and 17.5 years old.
0.5953
c. The middle 30% of indoor cats' age of death lies between what two numbers?
Low: 14.1420
x years
High: 15.8580
X years

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