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ID: 3007571 • Letter: H

Question

https://www.mathxl.com/Student/PlayerTest.aspx?testid-124462955&centerwin-yes; Take a Test-Kelly Bradley C D Quiz: Quiz Chapter 11 absPlus y Courses ourse Home This Question: 1 pt 40111(3complete) Sickle cell anemia is an inheriled disease in which red blood cells become distorted and deprived of axygen. A person with two sickle cell genes wil ave the disease, but a A person with two sickle cell genes will have the disease, but a omework uizzes&Test; Study Plan person with only one sickle cell gene wil have a mild, non-fatal anemia caled sickle cell trait. Using S to represent a healthy gene, and s the sickle cell gene, the table shows the our possibilitios for the children of two Sa parents. Find the probablity that these parents give birth to a child who is healthy That is, the child does not have the disease or Parent trait. Second Parent First sSss Chapter Conten P(child is Student Succes (Type an integer or a simplified fraction) Tools for Succet Multimedia Libr Purchase Optio P(child is healthy) Discussions E Enter your answer in the answer box Course Tools MathXL MacBook Pro 20 #2 esc

Explanation / Answer

From the table, we have 4 outcomes.

n(s)=4

let E be event of getting health child (i.e., do not have disease or trait-The explanatory information in the problem says A person with two sickle cell genes will have the disease, but a person with only one sickle cell gene will have mild, non-fatal anemia called sickle cell trait)

n(E)=1

therefore, P(E)=n(E)/n(S)=1/4.