According to a survey conducted by Gerber, 37% of babies have a social media account before their

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According to a survey conducted by Gerber, 37% of babies have a social media account before their first birthday. 

(a) Write the binomial formula to determine the probability that exactly x out of n randomly selected babies have a social media account before their first birthday. 

(b) Write the binomial formula to determine the probability that exactly 5 out of 25 randomly selected babies have a social media account before their first birthday.

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A Survey of Mathematics with Applications

ISBN: 978-0134112107

10th edition

Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde

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