 Hello and welcome to the session. In this session we are going to discuss the following question and the question says that identify sample, population, statistic and parameter for the following. A nutritionist wants to estimate the mean amount of sodium consumed by children under the age of 10 from a random sample of 75 children under the age of 10. The nutritionist obtain a sample mean of 2993 milligrams of sodium consumed and the second part is a random sample of registered nurses is selected from all hospitals in three county areas and the mean salary is calculated. We know that population is the entire collection of all the data of interest. Sample is a subset of the population which is randomly selected from the population. Statistic is a measurement describing the characteristic of the sample and parameter is a measurement describing the characteristic of the population. With this key idea we shall move on to the solution. Now we identify sample, population, statistic and parameter for the given statements. In the first statement the nutritionist wants to estimate the mean amount of sodium consumed by children under the age of 10. For this he collects 75 children so here population will be all children under the age of 10 sample will be random sample of 75 children under the age of 10 statistic will be the mean of 2993 milligrams of sodium consumed from the sample of 75 children and parameter will be mean amount of sodium consumed by children under the age of 10. In the second part we have a random sample of registered nurses is selected from all hospitals in three county area and the mean salary is calculated. So here population is all registered nurses from all hospitals in three county area. Sample is randomly selected registered nurses from all hospitals in three county area and statistic is mean salary of nurses in the sample. Lastly parameter is given by mean salary of all the registered nurses in that area. This is the required answer. This completes our session. Hope you enjoyed this session.