= . th value. Thus Q lies in the class ( – ) and its corresponding values are L = ; N = . ; pcf = ; f = ; c = Q = L + pcf N - p × c Q = + l × = + .
= . Q = Size of N th value = . th value So Q lies in the class ( - ) corresponding values are L = , N l = . ; pcf = , f = , c = Q = L + pcf N p ×c Q = + l × = .
D = L + pcf N p ×c D = Size of N th value = . th value. Thus D lies in the class ( – ) and its corresponding values are L = , N = . ; pcf = , f = , c = .
- - Descriptive statistics and probability D = + l × = . P = Size of N th value = . th value. Thus P lies in the class ( – ) and its corresponding values are L = ; N = .
Geometric mean Geometric mean is defined as the n th root of the product of n observations or values. If there are two observations, we take the square root; if there are three observations we have to take the cube root and so on GM X n .X . ..... ,......
X X X / where X X n ,...., refer to the various items of the series which are all greater than zero and n refers number of observations. Thus the geometric mean of values , , would be G