To find the probability that the school is closed tomorrow if there is an 85% chance for heavy snow, we first need to calculate the probability of heavy snow and school closure occurring together.
Given:
P(H) = 0.85 (probability of heavy snow = 85%)
P(C|H) = 0.90 (probability of school being closed given heavy snow = 90%)
The probability of both heavy snow and school being closed is calculated as:
P(H and C) = P(C|H) * P(H)
= 0.90 * 0.85
= 0.765
Therefore, the probability that the school is closed tomorrow is 76.5% if there is an 85% chance of heavy snowfall.
The tree diagram relates the weather forecast and school closings. Find the probability (as a percent) that the school is closed tomorrow if there is a
85
85% chance for heavy snow.
H - heavy snowfall L - light snowfall C - closed O - open
%
1 answer
1 answer