Prob ( guessing right) = 0.25 . Get 1 point.
Prob( guessing wrong) = 0.75. Lose 0.5 points.
Expected value = 1(0.25) + (-0.5)(0.75)
= -0.125 answer
Answer:
Hello uvigigigkhhkhoh Mark me brainliest
There are 3 seats currently, and there will be 4m extra seats if he buys m tables.
So, buying m tables give a total of
seats.
If we want this total to be at least 75, we have

The answer would be true.
I think you multiply 140 and 80% and then add thst to the 140