Ten students begin college at the same time. The probability of graduating in four years is 63%. Which expanded expression shows
the first and last terms of the expression used to find the probability that at least six will graduate in four years? (106)×(0.63)6×(0.37)4+...+(1010)×(0.63)10×(0.37)∘=0.706
Let X be the number of students that graduate in four years. Let's suppose that the academic results of each student is indepent from other students. If we consider the event "To graduate in 4 years" as a success, we can model X as a binomial random variable. Then, the probability of having k students that graduate in 4 years is
Since we want to know the probability that X is greater or equal to 6, we calculate the following
I would think that it would be the 3:8 one because if you do the math, 8-3 is 5 and 12-5 is 7. The only reason Im doing it this way is because its the only way I can set it up.
so you have more of a difference with the 12:5 one and less of a difference with the 3:8.