00:01
Hello, schwentz, this is the information regarding medical bill errors.
00:05
Suppose 4 out of 10 times the medical bills are not correct and sample of 10 medical bills are given.
00:13
So we are going to find the probability.
00:16
So probability of success must be written as x divided by n, which is 4 divided by 10, that is equivalent to 0 .4.
00:28
And q, that must be probability of unsuccessful.
00:34
We are going to write here for this.
00:37
So let's erase this to make it more clear, which is 1 minus 0 .4, that is 0 .6.
00:48
So now we are going to write here for this probability of random variable of x is equals to r.
00:58
That must be so here x is a random variable which is binomily distributed having n value as 10 and probability of success as p so this is ncr p raised to power r q raise to power n minus r so if i write here for this in the first case so let's erase this to make it more clear in the first case, zero medical bills will contain errors.
01:31
So this is 10c0.
01:35
0 .4, raise to power 0 1 minus 0 .4.
01:40
So 0 .6 probability of unsuccessful, raise to power n minus 0, that is 10.
01:46
So nc0 is 1, so this must be 0 .6 raised to power 10, which is 0 .0.
01:55
So if i write here this is the answer as probability in the first case we are going to write here for this this this must be our answer in the first case.
02:10
Thank you...