00:01
So for part e here, we have that we're dealing with a sample size of six, and we're looking for the probability that if x is the, or actually i'll call it little n, the probability that little n, the number of cats in the sample that weigh more than 4 .5 kilograms is equal to one.
00:23
We would have that that would be six times the probability, pardon me, six times the probability of the individual weight.
00:31
Being more than 4 .5 kilograms to the power of 1 times the probability of the individual weight being less than or equal to 4 .5 kilograms to the power of 5 but we need to actually find those probabilities we can find the probability of x less than or equal to 4 .5 by instead finding the probability of z a standard normal score being less than or equal to the corresponding z score.
01:03
Now, one second here.
01:05
So we have that the raw score is 4 .5.
01:09
The mean value is 4 .1, and the standard deviation is 0 .6.
01:14
So, this is the probability of z less than or equal to 0 .667, roughly...