00:01
Hi, i'm david and i'm here to help you answer your question.
00:03
Now let me bring up your question here.
00:06
In the question here we are going to discuss about the binomial distribution.
00:11
Let me remind you that even the x that followed by the binomial with the n and the b, and then the probability of the x equal to k, equal to n choose k, b power k times 1 minus b, power n minus k in this question here we are told that 90 % of the medical students admitted through the special programs so don't have the p equal to the 9 we have the symbol n equal to the 9 students now it will define the x equal to the number of the students that admitted through the special program and then we see that the x will follow by the binomial from the n equal to the 9 be equal to the zibbon 9.
01:09
The question i will call this one will be the 8.
01:13
I want to find probability of the x squared equal to the 8.
01:16
So it means that x can take the value of the 8 and x can take the value of the 9.
01:23
Now if you apply the formula here, the first probability will be written down as a 9 choose 8, 09 power 8, 1 minus 0 0 0 % 9 equal to the 0 1, power 9, minus 8 equal to 1.
01:37
The next one will exit to 1, 9 choose 9, 0 .0 power 9, 0 .1, power 0.
01:46
So if we compute this one, we will have, for the binomial, p equal to the 0bon 9, and equal to the 9, and here we have equal to 8...