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Ask any Statistics/Probability/Math Question

A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.





tutor3 : Hello Student, May I help you with your Math problems?
student : yes, i need help pulling information from a word problem
tutor3 : ok
student : this is a normal approximation problem are you familiar with?
tutor3 : yes
student : a decade ago high level of lead in blood put 88% of children to risk now only 9% are at risk. in a random sample 200 children taken a decade ago what is the probability that 50 or more had high blood levels and taken now 200 children what is the probablity that 50 more have high blood levels
tutor3 : ok
tutor3 : exactly
student : so i would take the 9% for the now and 88% for the decade correct
student : do i need to do anything with 50 at all?
tutor3 : yes
student : what would that be?
tutor3 : I am doing it for you .please wait
student : o ok im sorry
tutor3 : its ok
tutor3 : please mail youtr problem here *****@tutorteddy.com.i will solve it and send it to you.thanks


TutorTeddy.com & Boston Predictive Analytics

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