Suppose the age that children learn to walk is normally distributed with mean 12 months and standard deviation 2.2 month. 34 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible. What is the probability that one randomly selected person learned to walk when the person was between 11.7 and 12.5 months old? For the 34 people, find the probability that the average age that they learned to walk is between 11.7 and 12.5 months old. For part b, is the assumption that the distribution is normal necessary? YesNo Find the IQR for the average first time walking age for groups of 34 people. Round to two decimal places. Q1 = months Q3 = months IQR: months
Suppose the age that children learn to walk is normally distributed with mean 12 months and standard deviation 2.2 month. 34 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible. What is the probability that one randomly selected person learned to walk when the person was between 11.7 and 12.5 months old? For the 34 people, find the probability that the average age that they learned to walk is between 11.7 and 12.5 months old. For part b, is the assumption that the distribution is normal necessary? YesNo Find the IQR for the average first time walking age for groups of 34 people. Round to two decimal places. Q1 = months Q3 = months IQR: months
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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Suppose the age that children learn to walk is normally distributed with mean 12 months and standard deviation 2.2 month.
34 randomly selected people were asked what age they learned to walk. Round all answers to 4 decimal places where possible.
What is the probability that one randomly selected person learned to walk when the person was between 11.7 and 12.5 months old?
For the 34 people, find the probability that the average age that they learned to walk is between 11.7 and 12.5 months old.
For part b, is the assumption that the distribution is normal necessary? YesNo
Find the IQR for the average first time walking age for groups of 34 people. Round to two decimal places.
Q1 = months
Q3 = months
IQR: months
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