<span><span>p1</span>=0,8
<span>p2</span>=0,6,
<span>p3</span>=0,7,
<span>q1</span>=0,2,
<span>q2</span>=0,4,
<span>q3</span>=0,3.
</span><span>P2</span>=<span>p1</span>⋅<span>p2</span>⋅<span>q3</span>+<span>p1</span>⋅<span>q2</span>⋅<span>p3</span>+<span>q1</span>⋅<span>p2</span>⋅<span>p3=0.8*0,6*0,3+0,8*0,4*0,7+0,2*0,6*0,7=
Сосчитай сам только, а то долго
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