Answer:
0.6
Explanation:
From the given data:
[tex]\begin{gathered} P\left(x=-10\right)=0.20 \\ P\left(x=-5\right)=0.15 \\ P\left(x=0\right)=0.05 \\ P\left(x=5\right)=0.1 \\ P\left(x=10\right)=0.25 \\ P\left(x=15\right)=0.1 \\ P\left(x=20\right)=0.15 \end{gathered}[/tex]The probability that x is greater than or equal to 5 is:
[tex]\begin{gathered} P(x\geq5)=P\left(x=5\right)+P\left(x=10\right)+P\left(x=15\right)+P\left(x=20\right) \\ =0.1+0.25+0.1+0.15 \\ =0.6 \end{gathered}[/tex]