Calculate the Population Standard Deviation. 1  Calculate the mean or average of each data set. 2  Add up all the numbers in a data set and divide by the total number of pieces of data. 3  For example, if you have found numbers in a data set, divide the sum by 4.4  This is the mean of the data set.alculate the Population Standard Deviation. 1  Calculate the mean or average of each data set. 2  Add up all the numbers in a data set and divide by the total number of pieces of data. 3  For example, if you have found numbers in a data set, divide the sum by 4.
It takes about three days to four days for your milk to come in, if youâre a first-time mum. If you've had a baby before, it can happen earlier than this. Your breasts will start to feel full a couple of days after giving birth, which is a sign that your milk is coming in.
Early and often! Breastfeed as soon as possible after birth, then breastfeed at least 8 to 12 times every 24 hours to make plenty of milk for your baby. This means that in the first few days after birth, your baby will likely need to breastfeed about every hour or two in the daytime and a couple of times at night. For other signs that your babies are getting enough breast milk, see page 17. â¢ It helps to have each baby feed from both breasts. You can âassignâ a breast to each baby for a feeding and switch at the next feeding.