The tree diagram relates snowfall and school closings. Find the following probability. Let H, L, O, and C represent heavy snowfall, light snowfall, schools open, and schools closed, respectively.

Upper P left parenthesis Upper H font size decreased by 1 and font size decreased by 1 Upper O right parenthesis
0.4
0.6
0.6
0.4
0.3
0.7
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Part 1
Upper P left parenthesis Upper H font size decreased by 1 and font size decreased by 1 Upper O right parenthesisequals

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(Type an integer or a decimal.)