Assuming nN is less than or equal to 005 find the probability that the sample mean x-bar for a random sample of 24 taken from this population will be between 681 and 783. This is part of the base R package so you dont need to load additional libraries. Mean x trim 0 narm FALSE Following is the description of the parameters used.
Let x be a continuous random variable that has a normal distribution with a mean of 71 and a standard deviation of 15.
Calculate x the mean of all of the first coordinates of the data xi. After you calculate the variance of a set of numbers you have a value whose units are different from your original measurements. Divide sum by the number of samples. A low standard deviation relative to the mean value of a sample means the observations are tightly clustered.