Mathematics, 16.01.2020 14:31, khenalilovespandas

Amy commutes to work by two diﬀerent routes a and b. if she comes home by route a then she will be home no later than 6pm. with probability 0.8, but if she comes home by route b, then she will be home no later than 6pm. with probability 0.7. in the past, the proportion of time that amy chose route a is 0.4.
a. what proportion of times is amy home no later than 6pm.?
b. if amy is home after 6pm. today, what is the probability that she took route b?

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Amy commutes to work by two diﬀerent routes a and b. if she comes home by route a then she will be h...