yaya202097 yaya202097

18-11-2019
Mathematics

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Please Help and explain how to get the answer

Please Help and explain how to get the answer class=

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MemoIgu1 MemoIgu1

18-11-2019

Just sum the probabilities of x taking the value from -5 to 5. I mean:

x=-5 -> p(x=-5)= .15

x=0 -> p(x=0)=.05

x=5-> p(x=5)=.10

————-

P(-5<=x<=5)=.30=30%

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