According to an article posted on Time.com 69% of people who had been convicted

Question

According to an article posted on Time.com 69% of people who had been convicted of a violent act by age 34 reported eating candy almost every day as younggsters; 42% of people who had not been arrested for violent behavior reported the same. After reading this article, Prof Pak wonders whether he can still give his children candy every day or not. Assuming that 1 ot 10 people has a criminal record by age 34 what is the probability that a child eating candy everyday will be convicted of a violent act by age 34?

Explanation / Answer

probabilty child eating candy =0.1*0.69+0.9*0.42 =0.447

hence  probability that a child eating candy everyday will be convicted of a violent act by age 34=0.1*0.69/0.447

=0.154362

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