In the continuous type of series for determining the mean, the midpoint of the interval should be considered as the X variable value.
Continuous Series is the series where all types of class intervals with the frequency should be listed in the table form. Here all the class intervals do not contain a similar frequency.
For determining the mean, the direct method should be used in which the midpoint from X should be measured and the same should be relevant.
So, the following should not be relevant for determining the mean:
Therefore In the continuous type of series for determining the mean, the midpoint of the interval should be considered as X variable value.
Learn more about the mean here:brainly.com/question/11230531