Question
Solution
sec Ɵ - tan Ɵ = x/y ------ (i) sec Ɵ + tan Ɵ = y/x ------ (ii) solving (i) and (ii), we get => 2 sec Ɵ = (x2 + y2)/xy => sec Ɵ = (x 2 + y 2)/2xy
In one way ANOVA, σ2 is estimated by:
For the two variables X and Y, the following observations are tabulated
X: 3 4 �...
A Poisson distribution has a double mode at x = 1 and x = 2. The probability for x = 1 or for x = 2 of these two values is:
Which of the following approaches does multiplicative model have for the component of Time series Secular trend (7). Seasonal variation (S), Cyclical f...
From standard pack of 52 cards, 3 cards are drawn at random without replacement. The probability of drawing a king, a queen and a jack in order is
For the recorded observation, the coefficient of variation is 0.2 and the variance is 16. The arithmetic mean is:
Approximately, the coefficient of variation for the given data where Pearson's second measure of skewness = 0.42, arithmetic mean- 86 and median 80, is:
The null hypothesis in ANOVA one-way classification, the study of the variances due to k different sources, is:
In a 3 races, 2 genders and 5 in each treatments group for two -way ANOVA, the degree of freedom for source of variation due to interaction, error and ...
