Let A and B be the two possible outcomes of an experiment and suppose P(A) = 0.4, P(A U B) = 0.7 and P(B) = p, for what choice of p, A and B independent?
In multiplicative model of time series: Xt= Tt x St x Ct x It, where Tt , St , Ct , It are trend, seasonal, cyclical and irregular components, what can be said about the values of It?
For four observations 1, 0, 1, 4, the measure of kurtosis equals
To remove quadratic trend from an additive time series, differencing :
For two equally likely, exhaustive and independent events A and B, P(A ∩ B) is :
In a multiplicative time series model, the seasonal indices computed by the ratiototrend method