Answer:
The answer is "Option C".
Explanation:
There are goats behind two curtains, one behind every door.
Whenever a contender chooses a curtain, this contender is told the curtain had a goat behind all this by one of the certain to curtains.
Currently, one of two curtains another containing the car and one bearing a goat is provided to be chosen by the contestant. There is therefore an equal probability of
. Picking a car or a goat.
Similarly, provided that
Strategies and tactics likelihood A= 10 % = 2 in 20 trails effective.
Stratery B's chance = 80 % = 16 achievements in 20 directions = 80%
Therefore,


its result value is expected not surprising.