Please do correct sig figs

You perform an experiment and you get the following data set. (25.23, 25.26, 25.28, 25.24, 25.30) 1. What is the mean of your data set ? (Keep your answer in 4 significant figures) 2. What is the estimated Standard Deviation for the data set? (Keep your answer in 3 significant figures) 3. What is the estimated variance for the data set? 4. What is the Standard Deviation of the Mean for the data set? (Keep your answer in 2 significant figures)