A box contains three cards. One card is red on both sides, one card is green on

Question

A box contains three cards. One card is red on both sides, one card is green on both
sides, and one card is red on one side and green on the other. One card is selected from
the box at random, and the color on one side (first) is observed and after that the color on
other side (second) is observed. Make three such cards and perform the random
experiment described above 50 times.
a) Write down the relative frequency for the event that the first side is green;
b) Write down the relative frequency for the event that the second side is green
among those for which the first side is green.
a) b)
c) Find the conditional probability that the other side of the card is green (event
given that the observed side is green (event ) and compare it with your answer for b).

Explanation / Answer

pgreen=2/3

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