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. a. What is the probability that one randomly selected person learned to walk when the person was between 11.7 and 12.5 months old? 0.1441 b. 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. 0.6964 X c. For part b, is the assumption that the distribution is normal necessary? Yes No d. Find the 1QR for the average first time walking age for groups of 34 people. Round to two decimal places. Q1 10.52 X months %3D Q3 =| 13.49 X months %3D IQR: 2.80 X 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. a. What is the probability that one randomly selected person learned to walk when the person was between 11.7 and 12.5 months old? 0.1441 b. 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. 0.6964 X c. For part b, is the assumption that the distribution is normal necessary? Yes No d. Find the 1QR for the average first time walking age for groups of 34 people. Round to two decimal places. Q1 10.52 X months %3D Q3 =| 13.49 X months %3D IQR: 2.80 X months

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Description: Suppose the age that children learn to walk is normallydistributed with mean 12 months and standard deviation2.2 month.34 randomly selected people were asked what age theylearned to walk. Round all answers to 4 decimal placeswhere possible.a. What i

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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