The following frequency distribution is of which type?Class and Frequency Table
Class / वर्ग Frequency / आवृत्ति 0-5 4 0-10 7 0-15 11 0-20 16 0-25 23
Less than cumulative frequency
The given frequency distribution shows the class intervals and the frequency of the occurrences within each interval. Since the frequency is not cumulative (either less than or more than), this is an example of "Less than cumulative frequency" distribution, which is the correct answer (option 1).
Let X be a real-valued random variable with E[X] and E[X2] denoting the mean values of X and X2, respectively. The relation which always holds is
Two continuous random variables X and Y are related as
Y = 2X + 3
Let \(\sigma_X^2\) and \(\sigma_Y^2\) denote the variances of X and Y, respectively. The variances are related as