Photo by: Alila. Exocytosis is the cellular process in which intracellular vesicles in the cytoplasm fuse with the plasma membrane and release or secrete their contents into the extracellular space.
More generally, the formula for the 95% confidence interval on the mean is: Lower limit = M - (tCL)(sM) Upper limit = M + (tCL)(sM) where M is the sample mean, tCL is the t for the confidence level desired (0.95 in the above example), and sM is the estimated standard error of the mean.
Find the Class Width of the Frequency Table. 1  The lower limit for every class is the smallest value in that class. 2  The class width is the difference between the upper or lower class limits of consecutive classes. 3  Simplify to find that the class width is .