00:01
Alright, so here the question says that which of the following nature is defined as the average of all observations in a set of data? right, so the average of all the observations in a data is referred to as the mean, right.
00:17
So the mean, it represents the average of a data set, right and it is found, how do we calculate the mean of a data set? so this is computed as sum of all the observations in the data set divided by the total number of observations in the data set, right.
00:49
So for a sample, the mean is represented by x cap, right.
00:54
For example, the data here, the variable x has certain value, so its mean will be represented by x bar, right and the mean of a population is represented as mu, alright...