STEP - BY - STEP EXPLANATION
What to find?
P(X < 2)
Given:
[tex]P(X<2)=P(X=-2)+P(X=-1)+P(X=0)+P(X=1)[/tex]
From the given table;
P(X=-2) = 0.1
P(X=-1)=0.1
P(X=0)=0.2
P(X=1)=0.2
Substitute the values into the formula above and simplify.
[tex]P(X<2)=0.1+0.1+0.2+0.2[/tex][tex]=0.6[/tex]
Hence, P(X < 2)=0.6
ANSWER
0.6
