00:01
Hey there, welcome to numerate.
00:03
We have a chicken hatchery claiming that 80 % of their eggs are successfully hatched.
00:10
So if we have this expressed as our probability, so p equals 0 .80.
00:18
And we have the sample size here, or let's see, a farmer purchases 60 eggs, so 60.
00:27
We have our first part, which is number six, asking us what proportion of these eggs should the farmer expect to hatch.
00:37
So what we have here is going to be the sample proportion, in which it will basically equal the population proportion.
00:45
So hence it will basically equal the 0 .80.
00:51
All right, so we expect that many to hatch.
00:56
So with this, we have number seven next.
00:59
So number seven is asking us how many chickens should the farmer expect.
01:04
So we're looking for the expected number of chickens, which takes our sample size times the probability.
01:13
So 60 times 0 .8.
01:17
So hence, if we carry this out, this will be basically equals to 8 times 6 is 48, so 480 carry decimal 48...