Question

class mean to the given data by direct method ​

Answer 1

Answer:

Direct Mean Method: If x1, x2,. . ., xn are observations with respective frequencies f1, f2, . . ., fn, then this means observation x1 occurs f1 times, x2 occurs f2 times, and so on. ... Second step is to find ui = (xi - a)/h , where a is the assumed mean and h is the class size.