The age that children learn to walk is normally distributed with mean 11 months and standard deviation 2.3 months. 33 randomly selected people were asked what age they learned. d. For the 33 people, find the probability that the average age that chey learned to walk is betwe10.5 and 11.5 months old.e. For part d), is the assumption that the distribution is normal necessary? O YesO No of. Find the IQR for the average first time walking age for groups of 33 people.Q1 =monthsQ3 =monthsIQR:months

Answered: d. For the 33 people, find the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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The age that children learn to walk is normally distributed with mean 11 months and standard deviation 2.3 months. 33 randomly selected people were asked what age they learned.

d. For the 33 people, find the probability that the average age that chey learned to walk is betwe
10.5 and 11.5 months old.
e. For part d), is the assumption that the distribution is normal necessary? O YesO No o
f. Find the IQR for the average first time walking age for groups of 33 people.
Q1 =
months
Q3 =
months
IQR:
months

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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