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Assume 40​% of us have Group O blood. A hospital is conducting a blood drive because...

Assume 40​% of us have Group O blood. A hospital is conducting a blood drive because its supply of Group O blood is​ low, and it needs at least 158 donors of Group O blood. If 393 volunteers donate​ blood, estimate the probability that the number with Group O blood is at least 158. Is the pool of 393 volunteers likely to be​ sufficient?

​(a) ​P(Xgreater than or equals158​)equals nothing ​(Round to four decimal places as​ needed.)

math   Statistics-And-Probability   
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Let x in the gov donote the no. of volunteers have blood. group o. =) yn Bin (nipo; given n = 393 p=0.40 5) E(X)=n.p = 0.40*3hii..i am trying to provide the detailed answer to you but if you have any doubt please ask by comment. thanks...

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