Question 890949
{{{matrix(8,2,X,P(X),-10,0.22,-5,0.13,0,0.06,5,0.08,10,0.20,15,0.12,20,0.19)}}}
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{{{P(X>=5)=0.08+0.20+0.12+0.19=0.59}}}
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{{{P(-5<=X<5)=0.13+0.06}}}
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{{{P(X<=20)=0.22+0.13+0.06+0.08+0.20+0.12+0.19=1}}}