Find the probability at least 3 children do not recognize their mother's voice. Find the probability all 20 children recognize their mother's voice. Let the random variable X denote the number of children who do not recognize their mother's voice. Find the mean of X. Let the random variable X denote the number of children who do not recognize their mother's voice. Find the variance of X Find the probability that at most 4 children do not recognize their mother's voice?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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2.0000

0.9570

0.3230

1.8000

0.1222

From past experience, it is known 90% of one-year-old children can distinguish their mother's voice from the voice of a similar sounding female. A random sample of 20
one-year-olds is given this voice recognition test.
Transcribed Image Text:From past experience, it is known 90% of one-year-old children can distinguish their mother's voice from the voice of a similar sounding female. A random sample of 20 one-year-olds is given this voice recognition test.
Find the probability at least 3 children do not recognize their mother's voice.
Find the probability all 20 children recognize their mother's voice.
Let the random variable X denote the number of children who do not recognize their mother's voice. Find the mean of X.
- Let the random variable X denote the number of children who do not recognize their mother's voice. Find the variance of X.
. Find the probability that at most 4 children do not recognize their mother's voice?
Transcribed Image Text:Find the probability at least 3 children do not recognize their mother's voice. Find the probability all 20 children recognize their mother's voice. Let the random variable X denote the number of children who do not recognize their mother's voice. Find the mean of X. - Let the random variable X denote the number of children who do not recognize their mother's voice. Find the variance of X. . Find the probability that at most 4 children do not recognize their mother's voice?
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