Hi, I need help with this Probability and Statistics question. Example DevoreSta

Question

Hi, I need help with this Probability and Statistics question. Example DevoreStat9 2.E.051

According to a posting on a website subsequent to the death of a child who bit into a peanut, a certain study found that 4% of children younger than 18 in the United States have at least one food allergy. Among those with food allergies, about 43% had a history of severe reaction.

(a) If a child younger than 18 is randomly selected, what is the probability that he or she has at least one food allergy and a history of severe reaction? (Enter your answer to four decimal places.)

(b) It was also reported that 40% of those with an allergy in fact are allergic to multiple foods. If a child younger than 18 is randomly selected, what is the probability that he or she is allergic to multiple foods? (Enter your answer to three decimal places.)

2. 011.11 points | Previcus Aisweis DevuteSlal3 2E.051 My Notes Ask Your Teach 4 of children younger than 18 in the United States have at least one food alergy. Among According to a posting on a website subsequent to the death of a child who hit into a peanut, a certain study found that those with food allergies, about 43% had a history of severe reaction. (a) If a child younger than 18 Is randomly selected, what is the prohablity that he or she has at least one food allergy and a history of severe reaction? (Enter your answer to four decimal places.) b) It was also reported that 40% of those with an allergy in fact are allergic to multiple foods. If a child younger than 18 is randomly selected what is the probability that he or she is allergic to multiple foods? (Enter your answer to three decimal places.) Need Help? Readit Talk to Tutor Talk to a Submit Answer Seve Progress Practice Another Version

Explanation / Answer

According to study 4% of children younger than 18 in the United States

In which amoung those children at least one food allergy chidren are 43 %

It was also reported that 40% of those with an allergy in fact are allergic to multiple foods.

Then,

A ) The probability that he or she has at least one food allergy and a history of severe reaction

= 43 /100

= 0.43

B ) The probability that he or she is allergic to multiple foods

= 40 / 100

= 0.40

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